Mozilla
Products by Mozilla Sorted by Most Security Vulnerabilities since 2018
Recent Mozilla Security Advisories
Advisory | Title | Published |
---|---|---|
mfsa2023-40 | Security Vulnerability fixed in Firefox 117.0.1, Firefox ESR 115.2.1, Firefox ESR 102.15.1, Thunderbird 102.15.1, and Thunderbird 115.2.2 mfsa2023-40 | September 12, 2023 |
mfsa2023-39 | Security Issues in Mozilla VPN for Linux prior to v2.16.1 mfsa2023-39 | August 30, 2023 |
mfsa2023-34 | Security Vulnerabilities fixed in Firefox 117 mfsa2023-34 | August 29, 2023 |
mfsa2023-35 | Security Vulnerabilities fixed in Firefox ESR 102.15 mfsa2023-35 | August 29, 2023 |
mfsa2023-38 | Security Vulnerabilities fixed in Thunderbird 115.2 mfsa2023-38 | August 29, 2023 |
mfsa2023-37 | Security Vulnerabilities fixed in Thunderbird 102.15 mfsa2023-37 | August 29, 2023 |
mfsa2023-36 | Security Vulnerabilities fixed in Firefox ESR 115.2 mfsa2023-36 | August 29, 2023 |
mfsa2023-33 | Security Vulnerabilities fixed in Thunderbird 115.1 mfsa2023-33 | August 2, 2023 |
mfsa2023-32 | Security Vulnerabilities fixed in Thunderbird 102.14 mfsa2023-32 | August 2, 2023 |
mfsa2023-31 | Security Vulnerabilities fixed in Firefox ESR 115.1 mfsa2023-31 | August 1, 2023 |
Known Exploited Mozilla Vulnerabilities
The following Mozilla vulnerabilities have been marked by CISA as Known to be Exploited by threat actors.
Title | Description | Added |
---|---|---|
Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability | Mozilla Firefox, Firefox ESR, and Thunderbird contain a use-after-free vulnerability in SVG Animation, targeting Firefox and Tor browser users on Windows. CVE-2016-9079 | June 22, 2023 |
Mozilla Firefox Security Feature Bypass Vulnerability | Moxilla Firefox allows remote attackers to bypass the Same Origin Policy to read arbitrary files or gain privileges. CVE-2015-4495 | May 25, 2022 |
Mozilla Firefox and Thunderbird Type Confusion Vulnerability | Mozilla Firefox and Thunderbird contain a type confusion vulnerability that can occur when manipulating JavaScript objects due to issues in Array.pop, allowing for an exploitable crash. CVE-2019-11707 | May 23, 2022 |
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability | Mozilla Firefox and Thunderbird contain a sandbox escape vulnerability that could result in remote code execution. CVE-2019-11708 | May 23, 2022 |
Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability | Mozilla Firefox and Thunderbird do not properly handle onreadystatechange events in conjunction with page reloading, which allows remote attackers to cause a denial-of-service or possibly execute arbitrary code via a crafted web site. CVE-2013-1690 | March 28, 2022 |
Mozilla Firefox Use-After-Free Vulnerability | Mozilla Firefox contains a use-after-free vulnerability in WebGPU IPC Framework which can be exploited to perform arbitrary code execution. CVE-2022-26486 | March 7, 2022 |
Mozilla Firefox Use-After-Free Vulnerability | Mozilla Firefox contains a use-after-free vulnerability in XSLT parameter processing which can be exploited to perform arbitrary code execution. CVE-2022-26485 | March 7, 2022 |
Mozilla Firefox Information Disclosure Vulnerability | Mozilla Firefox does not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site. CVE-2013-1675 | March 3, 2022 |
Mozilla Firefox 74 and Firefox ESR 68.6 nsDocShell vulnerability | A race condition can cause a use-after-free when running the nsDocShell destructor. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1. CVE-2020-6819 | November 3, 2021 |
Mozilla Firefox 74 and Firefox ESR 68.6 ReadableStream vulnerability | A race condition can cause a use-after-free when handling a ReadableStream. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1. CVE-2020-6820 | November 3, 2021 |
Mozilla Firefox IonMonkey JIT compiler Type Confusion Vulnerability | Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1 CVE-2019-17026 | November 3, 2021 |
By the Year
In 2023 there have been 142 vulnerabilities in Mozilla with an average score of 7.3 out of ten. Last year Mozilla had 186 security vulnerabilities published. If vulnerabilities keep coming in at the current rate, it appears that number of security vulnerabilities in Mozilla in 2023 could surpass last years number. Last year, the average CVE base score was greater by 0.19
Year | Vulnerabilities | Average Score |
---|---|---|
2023 | 142 | 7.25 |
2022 | 186 | 7.44 |
2021 | 158 | 7.11 |
2020 | 180 | 7.26 |
2019 | 144 | 7.67 |
2018 | 128 | 7.64 |
It may take a day or so for new Mozilla vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Mozilla Security Vulnerabilities
Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187
CVE-2023-4863
8.8 - High
- September 12, 2023
Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)
Memory Corruption
When creating a callback over IPC for showing the File Picker window
CVE-2023-4575
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function
CVE-2023-4577
6.5 - Medium
- September 11, 2023
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data
CVE-2023-4576
8.6 - High
- September 11, 2023
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Integer Overflow or Wraparound
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`
CVE-2023-4578
6.5 - Medium
- September 11, 2023
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Allocation of Resources Without Limits or Throttling
Search queries in the default search engine could appear to have been the currently navigated URL if the search query itself was a well formed URL
CVE-2023-4579
3.1 - Low
- September 11, 2023
Search queries in the default search engine could appear to have been the currently navigated URL if the search query itself was a well formed URL. This could have led to a site spoofing another if it had been maliciously set as the default search engine. This vulnerability affects Firefox < 117.
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information
CVE-2023-4580
6.5 - Medium
- September 11, 2023
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Missing Encryption of Sensitive Data
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which
CVE-2023-4581
4.3 - Medium
- September 11, 2023
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS
CVE-2023-4582
8.8 - High
- September 11, 2023
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Classic Buffer Overflow
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded
CVE-2023-4583
7.5 - High
- September 11, 2023
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1
CVE-2023-4584
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory Corruption
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1
CVE-2023-4585
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory Corruption
When creating a callback over IPC for showing the Color Picker window
CVE-2023-4574
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When creating a callback over IPC for showing the File Picker window
CVE-2023-4575
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data
CVE-2023-4576
8.6 - High
- September 11, 2023
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Integer Overflow or Wraparound
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function
CVE-2023-4577
6.5 - Medium
- September 11, 2023
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`
CVE-2023-4578
6.5 - Medium
- September 11, 2023
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Allocation of Resources Without Limits or Throttling
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information
CVE-2023-4580
6.5 - Medium
- September 11, 2023
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Missing Encryption of Sensitive Data
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which
CVE-2023-4581
4.3 - Medium
- September 11, 2023
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS
CVE-2023-4582
8.8 - High
- September 11, 2023
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Classic Buffer Overflow
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded
CVE-2023-4583
7.5 - High
- September 11, 2023
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1
CVE-2023-4584
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory Corruption
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1
CVE-2023-4585
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory Corruption
When creating a callback over IPC for showing the Color Picker window
CVE-2023-4574
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When creating a callback over IPC for showing the File Picker window
CVE-2023-4575
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data
CVE-2023-4576
8.6 - High
- September 11, 2023
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Integer Overflow or Wraparound
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which
CVE-2023-4581
4.3 - Medium
- September 11, 2023
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1
CVE-2023-4584
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory Corruption
An invalid Polkit Authentication check and missing authentication requirements for D-Bus methods
CVE-2023-4104
5.5 - Medium
- September 11, 2023
An invalid Polkit Authentication check and missing authentication requirements for D-Bus methods allowed any local user to configure arbitrary VPN setups. *This bug only affects Mozilla VPN on Linux. Other operating systems are unaffected.* This vulnerability affects Mozilla VPN client for Linux < v2.16.1.
AuthZ
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1
CVE-2023-4584
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory Corruption
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`
CVE-2023-4578
6.5 - Medium
- September 11, 2023
When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Allocation of Resources Without Limits or Throttling
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function
CVE-2023-4577
6.5 - Medium
- September 11, 2023
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data
CVE-2023-4576
8.6 - High
- September 11, 2023
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Integer Overflow or Wraparound
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information
CVE-2023-4580
6.5 - Medium
- September 11, 2023
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Missing Encryption of Sensitive Data
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which
CVE-2023-4581
4.3 - Medium
- September 11, 2023
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS
CVE-2023-4582
8.8 - High
- September 11, 2023
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Classic Buffer Overflow
When creating a callback over IPC for showing the File Picker window
CVE-2023-4575
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When creating a callback over IPC for showing the Color Picker window
CVE-2023-4574
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded
CVE-2023-4583
7.5 - High
- September 11, 2023
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1
CVE-2023-4585
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Memory Corruption
When creating a callback over IPC for showing the Color Picker window
CVE-2023-4574
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When creating a callback over IPC for showing the File Picker window
CVE-2023-4575
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data
CVE-2023-4576
8.6 - High
- September 11, 2023
On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Integer Overflow or Wraparound
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which
CVE-2023-4581
4.3 - Medium
- September 11, 2023
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
When creating a callback over IPC for showing the Color Picker window
CVE-2023-4574
6.5 - Medium
- September 11, 2023
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1
CVE-2023-4584
8.8 - High
- September 11, 2023
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Memory Corruption
When receiving rendering data over IPC `mStream` could have been destroyed when initialized
CVE-2023-4573
6.5 - Medium
- September 11, 2023
When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When receiving rendering data over IPC `mStream` could have been destroyed when initialized
CVE-2023-4573
6.5 - Medium
- September 11, 2023
When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When receiving rendering data over IPC `mStream` could have been destroyed when initialized
CVE-2023-4573
6.5 - Medium
- September 11, 2023
When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When receiving rendering data over IPC `mStream` could have been destroyed when initialized
CVE-2023-4573
6.5 - Medium
- September 11, 2023
When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
When receiving rendering data over IPC `mStream` could have been destroyed when initialized
CVE-2023-4573
6.5 - Medium
- September 11, 2023
When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
Dangling pointer
A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time
CVE-2022-46884
8.8 - High
- August 24, 2023
A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time. This could have lead to memory corruption or a potentially exploitable crash. *Note*: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox < 106.
Dangling pointer
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13
CVE-2023-4056
9.8 - Critical
- August 01, 2023
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Memory Corruption
Memory safety bugs present in Firefox 115
CVE-2023-4058
9.8 - Critical
- August 01, 2023
Memory safety bugs present in Firefox 115. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116.
Memory Corruption
When the number of cookies per domain was exceeded in `document.cookie`
CVE-2023-4055
7.5 - High
- August 01, 2023
When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code
CVE-2023-4054
5.5 - Medium
- August 01, 2023
When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1.
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0
CVE-2023-4057
9.8 - Critical
- August 01, 2023
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.
Memory Corruption
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13
CVE-2023-4056
9.8 - Critical
- August 01, 2023
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Memory Corruption
When the number of cookies per domain was exceeded in `document.cookie`
CVE-2023-4055
7.5 - High
- August 01, 2023
When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code
CVE-2023-4054
5.5 - Medium
- August 01, 2023
When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1.
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations
CVE-2023-4048
7.5 - High
- August 01, 2023
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Out-of-bounds Read
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions
CVE-2023-4047
8.8 - High
- August 01, 2023
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis
CVE-2023-4046
5.3 - Medium
- August 01, 2023
In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data
CVE-2023-4045
5.3 - Medium
- August 01, 2023
Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Origin Validation Error
The Firefox updater created a directory writable by non-privileged users
CVE-2023-4052
6.5 - Medium
- August 01, 2023
The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.
insecure temporary file
In some cases, an untrusted input stream was copied to a stack buffer without checking its size
CVE-2023-4050
7.5 - High
- August 01, 2023
In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Memory Corruption
Race conditions in reference counting code were found through code inspection
CVE-2023-4049
5.9 - Medium
- August 01, 2023
Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Race Condition
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations
CVE-2023-4048
7.5 - High
- August 01, 2023
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Out-of-bounds Read
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions
CVE-2023-4047
8.8 - High
- August 01, 2023
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis
CVE-2023-4046
5.3 - Medium
- August 01, 2023
In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data
CVE-2023-4045
5.3 - Medium
- August 01, 2023
Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Origin Validation Error
In some cases, an untrusted input stream was copied to a stack buffer without checking its size
CVE-2023-4050
7.5 - High
- August 01, 2023
In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Memory Corruption
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program
CVE-2023-4053
6.5 - Medium
- August 01, 2023
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
insecure temporary file
A website could have obscured the full screen notification by using the file open dialog
CVE-2023-4051
7.5 - High
- August 01, 2023
A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
A website could have obscured the full screen notification by using the file open dialog
CVE-2023-4051
7.5 - High
- August 01, 2023
A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program
CVE-2023-4053
6.5 - Medium
- August 01, 2023
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
insecure temporary file
A website could have obscured the full screen notification by using the file open dialog
CVE-2023-4051
7.5 - High
- August 01, 2023
A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program
CVE-2023-4053
6.5 - Medium
- August 01, 2023
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
insecure temporary file
Race conditions in reference counting code were found through code inspection
CVE-2023-4049
5.9 - Medium
- August 01, 2023
Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Race Condition
Thunderbird allowed the Text Direction Override Unicode Character in filenames
CVE-2023-3417
7.5 - High
- July 24, 2023
Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.
Thunderbird allowed the Text Direction Override Unicode Character in filenames
CVE-2023-3417
7.5 - High
- July 24, 2023
Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.
During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash
CVE-2023-3600
8.8 - High
- July 12, 2023
During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
Dangling pointer
During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash
CVE-2023-3600
8.8 - High
- July 12, 2023
During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
Dangling pointer
The session restore helper crashed whenever there was no parameter sent to the message handler
CVE-2023-37456
6.5 - Medium
- July 12, 2023
The session restore helper crashed whenever there was no parameter sent to the message handler. This vulnerability affects Firefox for iOS < 115.
The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab
CVE-2023-37455
5.4 - Medium
- July 12, 2023
The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab. This vulnerability affects Firefox for iOS < 115.
Clickjacking
Memory safety bugs present in Firefox 114
CVE-2023-37212
8.8 - High
- July 05, 2023
Memory safety bugs present in Firefox 114. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115.
Memory Corruption
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12
CVE-2023-37211
8.8 - High
- July 05, 2023
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Memory Corruption
A website could prevent a user from exiting full-screen mode via alert and prompt calls
CVE-2023-37210
6.5 - Medium
- July 05, 2023
A website could prevent a user from exiting full-screen mode via alert and prompt calls. This could lead to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115.
A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to
CVE-2023-37209
8.8 - High
- July 05, 2023
A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.
Dangling pointer
Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website
CVE-2023-37206
6.5 - Medium
- July 05, 2023
Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website. This vulnerability affects Firefox < 115.
insecure temporary file
The use of RTL Arabic characters in the address bar may have allowed for URL spoofing
CVE-2023-37205
6.5 - Medium
- July 05, 2023
The use of RTL Arabic characters in the address bar may have allowed for URL spoofing. This vulnerability affects Firefox < 115.
A website could have obscured the fullscreen notification by using an option element by introducing lag
CVE-2023-37204
6.5 - Medium
- July 05, 2023
A website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115.
Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have
CVE-2023-37203
7.8 - High
- July 05, 2023
Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files. This could have been leveraged to execute arbitrary code. This vulnerability affects Firefox < 115.
When Firefox is configured to block storage of all cookies
CVE-2023-3482
6.5 - Medium
- July 05, 2023
When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.
AuthZ
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12
CVE-2023-37211
8.8 - High
- July 05, 2023
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Memory Corruption
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12
CVE-2023-37211
8.8 - High
- July 05, 2023
Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Memory Corruption
When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code
CVE-2023-37208
7.8 - High
- July 05, 2023
When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL
CVE-2023-37207
6.5 - Medium
- July 05, 2023
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Reflection Injection
Cross-compartment wrappers wrapping a scripted proxy could have caused objects
CVE-2023-37202
8.8 - High
- July 05, 2023
Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Dangling pointer
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS
CVE-2023-37201
8.8 - High
- July 05, 2023
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Dangling pointer