Mozilla FireFox Extended Support Release (ESR)

The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification

CVE-2020-12413 5.9 - Medium - February 16, 2023

The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification. To mitigate this vulnerability, Firefox disabled support for DHE ciphersuites.

Side Channel Attack

If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write

CVE-2022-28281 8.8 - High - December 22, 2022

If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Memory Corruption

Certain network request objects were freed too early when releasing a network request handle

CVE-2022-22740 8.8 - High - December 22, 2022

Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Dangling pointer

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol

CVE-2022-22739 6.5 - Medium - December 22, 2022

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Applying a CSS filter effect could have accessed out of bounds memory

CVE-2022-22738 8.8 - High - December 22, 2022

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Memory Corruption

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows

CVE-2022-22737 7.5 - High - December 22, 2022

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Dangling pointer

If an attacker was able to corrupt the methods of an Array object in JavaScript

CVE-2022-1802 8.8 - High - December 22, 2022

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

Prototype Pollution

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object

CVE-2022-1529 8.8 - High - December 22, 2022

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

Prototype Pollution

<code>NSSToken</code> objects were referenced

CVE-2022-1097 6.5 - Medium - December 22, 2022

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Dangling pointer

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations

CVE-2022-22745 6.5 - Medium - December 22, 2022

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

When navigating from inside an iframe while requesting fullscreen access

CVE-2022-22743 4.3 - Medium - December 22, 2022

When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

When inserting text while in edit mode

CVE-2022-22742 6.5 - Medium - December 22, 2022

When inserting text while in edit mode, some characters might have lead to out-of-bounds memory access causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Out-of-bounds Read

When resizing a popup while requesting fullscreen access, the popup would have become unable to leave fullscreen mode

CVE-2022-22741 7.5 - High - December 22, 2022

When resizing a popup while requesting fullscreen access, the popup would have become unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

After a VR Process is destroyed

CVE-2022-1196 6.5 - Medium - December 22, 2022

After a VR Process is destroyed, a reference to it may have been retained and used, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8 and Firefox ESR < 91.8.

Dangling pointer

If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document

CVE-2022-22759 9.6 - Critical - December 22, 2022

If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Mozilla developers Calixte Denizet

CVE-2022-22751 8.8 - High - December 22, 2022

Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. 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 ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Memory Corruption

If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script

CVE-2022-22756 8.8 - High - December 22, 2022

If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

If a user installed an extension of a particular type, the extension could have auto-updated itself and while doing so, bypass the prompt

CVE-2022-22754 6.5 - Medium - December 22, 2022

If a user installed an extension of a particular type, the extension could have auto-updated itself and while doing so, bypass the prompt which grants the new version the new requested permissions. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

AuthZ

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol

CVE-2022-22748 6.5 - Medium - December 22, 2022

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash

CVE-2022-22747 6.5 - Medium - December 22, 2022

After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Improper Certificate Validation

Mozilla developers Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96 and Firefox ESR 91.5

CVE-2022-22764 8.8 - High - December 22, 2022

Mozilla developers Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96 and Firefox ESR 91.5. 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 < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Buffer Overflow

When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible

CVE-2022-22763 8.8 - High - December 22, 2022

When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy

CVE-2022-22761 8.8 - High - December 22, 2022

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

When importing resources using Web Workers, error messages

CVE-2022-22760 6.5 - Medium - December 22, 2022

When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Generation of Error Message Containing Sensitive Information

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free

CVE-2022-26485 8.8 - High - December 22, 2022

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

Dangling pointer

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox

CVE-2022-26387 7.5 - High - December 22, 2022

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

TOCTTOU

When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification

CVE-2022-26383 4.3 - Medium - December 22, 2022

When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash

CVE-2022-26381 8.8 - High - December 22, 2022

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

Dangling pointer

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10

CVE-2022-34484 8.8 - High - December 22, 2022

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. 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 < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

assertion failure

In the <code>nsTArray_Impl::ReplaceElementsAt()</code> function

CVE-2022-34481 8.8 - High - December 22, 2022

In the <code>nsTArray_Impl::ReplaceElementsAt()</code> function, an integer overflow could have occurred when the number of elements to replace was too large for the container. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Integer Overflow or Wraparound

An iframe that was not permitted to run scripts could do so if the user clicked on a <code>javascript:</code> link

CVE-2022-34468 8.8 - High - December 22, 2022

An iframe that was not permitted to run scripts could do so if the user clicked on a <code>javascript:</code> link. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Documents in deeply-nested cross-origin browsing contexts could have obtained permissions granted to the top-level origin

CVE-2022-29909 8.8 - High - December 22, 2022

Documents in deeply-nested cross-origin browsing contexts could have obtained permissions granted to the top-level origin, bypassing the existing prompt and wrongfully inheriting the top-level permissions. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Incorrect Default Permissions

Mozilla developers and community members Nika Layzell

CVE-2022-28289 8.8 - High - December 22, 2022

Mozilla developers and community members Nika Layzell, Andrew McCreight, Gabriele Svelto, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 91.7. 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 Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Memory Corruption

Due to a layout change, iframe contents could have been rendered outside of its border

CVE-2022-28286 5.4 - Medium - December 22, 2022

Due to a layout change, iframe contents could have been rendered outside of its border. This could have led to user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Clickjacking

When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used

CVE-2022-28285 6.5 - Medium - December 22, 2022

When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer

CVE-2022-28282 6.5 - Medium - December 22, 2022

By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer, leading to a potential exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Dangling pointer

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape

CVE-2022-26486 9.6 - Critical - December 22, 2022

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

Dangling pointer

If an attacker could control the contents of an iframe sandboxed with <code>allow-popups</code> but not <code>allow-scripts</code>, they were able to craft a link

CVE-2022-26384 9.6 - Critical - December 22, 2022

If an attacker could control the contents of an iframe sandboxed with <code>allow-popups</code> but not <code>allow-scripts</code>, they were able to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead

CVE-2022-40956 6.1 - Medium - December 22, 2022

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

XSS

An out-of-bounds read can occur when decoding H264 video

CVE-2022-3266 5.5 - Medium - December 22, 2022

An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Out-of-bounds Read

Mozilla developers Andrew McCreight

CVE-2022-29917 9.8 - Critical - December 22, 2022

Mozilla developers Andrew McCreight, Gabriele Svelto, Tom Ritter and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 99 and Firefox ESR 91.8. 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 Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

assertion failure

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables

CVE-2022-29916 6.5 - Medium - December 22, 2022

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12

CVE-2022-38478 8.8 - High - December 22, 2022

Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. 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 Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.

Memory Corruption

An optimization in WebGL was incorrect in some cases, and could have led to memory corruption and a potentially exploitable crash

CVE-2022-46881 8.8 - High - December 22, 2022

An optimization in WebGL was incorrect in some cases, and could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 106, Firefox ESR < 102.6, and Thunderbird < 102.6.

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash

CVE-2022-46880 6.5 - Medium - December 22, 2022

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

Dangling pointer

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files

CVE-2022-46872 8.6 - High - December 22, 2022

An attacker who compromised a content process could have partially escaped the sandbox to read arbitrary files via clipboard-related IPC messages.<br>*This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 108, Firefox ESR < 102.6, and Thunderbird < 102.6.

Cross-Site Tracing occurs when a server will echo a request back via the Trace method

CVE-2022-45411 6.1 - Medium - December 22, 2022

Cross-Site Tracing occurs when a server will echo a request back via the Trace method, allowing an XSS attack to access to authorization headers and cookies inaccessible to JavaScript (such as cookies protected by HTTPOnly). To mitigate this attack, browsers placed limits on <code>fetch()</code> and XMLHttpRequest; however some webservers have implemented non-standard headers such as <code>X-Http-Method-Override</code> that override the HTTP method, and made this attack possible again. Thunderbird has applied the same mitigations to the use of this and similar headers. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

XSS

Through a series of popups

CVE-2022-45408 6.5 - Medium - December 22, 2022

Through a series of popups that reuse windowName, an attacker can cause a window to go fullscreen without the user seeing the notification prompt, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Freeing arbitrary <code>nsIInputStream</code>'s on a different thread than creation could have led to a use-after-free and potentially exploitable crash

CVE-2022-45405 6.5 - Medium - December 22, 2022

Freeing arbitrary <code>nsIInputStream</code>'s on a different thread than creation could have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Dangling pointer

The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called

CVE-2022-45409 8.8 - High - December 22, 2022

The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Dangling pointer

When a ServiceWorker intercepted a request with <code>FetchEvent</code>

CVE-2022-45410 6.5 - Medium - December 22, 2022

When a ServiceWorker intercepted a request with <code>FetchEvent</code>, the origin of the request was lost after the ServiceWorker took ownership of it. This had the effect of negating SameSite cookie protections. This was addressed in the spec and then in browsers. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Keyboard events reference strings like "KeyA" that were at fixed, known, and widely-spread addresses

CVE-2022-45416 6.5 - Medium - December 22, 2022

Keyboard events reference strings like "KeyA" that were at fixed, known, and widely-spread addresses. Cache-based timing attacks such as Prime+Probe could have possibly figured out which keys were being pressed. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Side Channel Attack

If a custom mouse cursor is specified in CSS

CVE-2022-45418 6.1 - Medium - December 22, 2022

If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Clickjacking

Use tables inside of an iframe

CVE-2022-45420 6.5 - Medium - December 22, 2022

Use tables inside of an iframe, an attacker could have caused iframe contents to be rendered outside the boundaries of the iframe, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Clickjacking

Mozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.4

CVE-2022-45421 8.8 - High - December 22, 2022

Mozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.4. 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 ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place

CVE-2022-46874 8.8 - High - December 22, 2022

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.

Mozilla developers Randell Jesup

CVE-2022-46878 8.8 - High - December 22, 2022

Mozilla developers Randell Jesup, Valentin Gosu, Olli Pettay, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.5. 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 < 108, Firefox ESR < 102.6, and Thunderbird < 102.6.

A use-after-free in WebGL extensions could have led to a potentially exploitable crash

CVE-2022-46882 9.8 - Critical - December 22, 2022

A use-after-free in WebGL extensions could have led to a potentially exploitable crash. This vulnerability affects Firefox < 107, Firefox ESR < 102.6, and Thunderbird < 102.6.

Dangling pointer

An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited

CVE-2021-4127 9.8 - Critical - December 22, 2022

An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. This vulnerability affects Thunderbird < 78.9 and Firefox ESR < 78.9.

Mozilla developers and community members Julian Hector

CVE-2021-4129 9.8 - Critical - December 22, 2022

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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 < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox

CVE-2021-4140 10 - Critical - December 22, 2022

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

aka Blind XPath Injection

An improper implementation of the new iframe sandbox keyword <code>

CVE-2022-29911 6.1 - Medium - December 22, 2022

An improper implementation of the new iframe sandbox keyword <code>allow-top-navigation-by-user-activation</code> could lead to script execution without <code>allow-scripts</code> being present. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Clickjacking

Requests initiated through reader mode did not properly omit cookies with a SameSite attribute

CVE-2022-29912 6.1 - Medium - December 22, 2022

Requests initiated through reader mode did not properly omit cookies with a SameSite attribute. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Open Redirect

When reusing existing popups Firefox would have

CVE-2022-29914 6.5 - Medium - December 22, 2022

When reusing existing popups Firefox would have allowed them to cover the fullscreen notification UI, which could have enabled browser spoofing attacks. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

If an object prototype was corrupted by an attacker, they

CVE-2022-2200 8.8 - High - December 22, 2022

If an object prototype was corrupted by an attacker, they would have been able to set undesired attributes on a JavaScript object, leading to privileged code execution. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Prototype Pollution

Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 102

CVE-2022-2505 8.8 - High - December 22, 2022

Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 102. 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 ESR < 102.1, Firefox < 103, and Thunderbird < 102.1.

Memory Corruption

A malicious website could have learned the size of a cross-origin resource that supported Range requests

CVE-2022-31736 9.8 - Critical - December 22, 2022

A malicious website could have learned the size of a cross-origin resource that supported Range requests. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash

CVE-2022-31737 9.8 - Critical - December 22, 2022

A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Memory Corruption

When exiting fullscreen mode

CVE-2022-31738 6.5 - Medium - December 22, 2022

When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Authentication Bypass by Spoofing

On arm64

CVE-2022-31740 8.8 - High - December 22, 2022

On arm64, WASM code could have resulted in incorrect assembly generation leading to a register allocation problem, and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption

CVE-2022-31741 8.8 - High - December 22, 2022

A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Buffer Overflow

An attacker could have exploited a timing attack by sending a large number of

CVE-2022-31742 6.5 - Medium - December 22, 2022

An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Mozilla developers Andrew McCreight, Nicolas B

CVE-2022-31747 9.8 - Critical - December 22, 2022

Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. 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 Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

An attacker could have injected CSS into stylesheets accessible

CVE-2022-31744 6.5 - Medium - December 22, 2022

An attacker could have injected CSS into stylesheets accessible via internal URIs, such as resource:, and in doing so bypass a page's Content Security Policy. This vulnerability affects Firefox ESR < 91.11, Thunderbird < 102, Thunderbird < 91.11, and Firefox < 101.

AuthZ

If an out-of-memory condition occurred when creating a JavaScript global

CVE-2022-45406 9.8 - Critical - December 22, 2022

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Memory Corruption

Through a series of popup and <code>window.print()</code> calls, an attacker

CVE-2022-45404 6.5 - Medium - December 22, 2022

Through a series of popup and <code>window.print()</code> calls, an attacker can cause a window to go fullscreen without the user seeing the notification prompt, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have

CVE-2022-45403 6.5 - Medium - December 22, 2022

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Side Channel Attack

Mozilla developers Ashley Hale and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.3

CVE-2022-42932 8.8 - High - December 22, 2022

Mozilla developers Ashley Hale and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.3. 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 Thunderbird < 102.4, Firefox ESR < 102.4, and Firefox < 106.

If a website called <code>window.print()</code> in a particular way, it could cause a denial of service of the browser

CVE-2022-42929 6.5 - Medium - December 22, 2022

If a website called <code>window.print()</code> in a particular way, it could cause a denial of service of the browser, which may persist beyond browser restart depending on the user's session restore settings. This vulnerability affects Thunderbird < 102.4, Firefox ESR < 102.4, and Firefox < 106.

Certain types of allocations were missing annotations

CVE-2022-42928 8.8 - High - December 22, 2022

Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific state, could have lead to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 102.4, Firefox ESR < 102.4, and Firefox < 106.

A same-origin policy violation could have

CVE-2022-42927 8.1 - High - December 22, 2022

A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via <code>performance.getEntries()</code>. This vulnerability affects Thunderbird < 102.4, Firefox ESR < 102.4, and Firefox < 106.

Origin Validation Error

Mozilla developers Nika Layzell

CVE-2022-40962 8.8 - High - December 22, 2022

Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. 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 ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe

CVE-2022-40960 6.5 - Medium - December 22, 2022

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Dangling pointer

During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass

CVE-2022-40959 6.5 - Medium - December 22, 2022

During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Insecure Storage of Sensitive Information

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies

CVE-2022-40958 6.5 - Medium - December 22, 2022

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Injection

Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash

CVE-2022-40957 6.5 - Medium - December 22, 2022

Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash.<br>*This bug only affects Firefox on ARM64 platforms.*. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1

CVE-2022-38477 8.8 - High - December 22, 2022

Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. 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 ESR < 102.2, Thunderbird < 102.2, and Firefox < 104.

Memory Corruption

A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability

CVE-2022-38476 7.5 - High - December 22, 2022

A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability. In Firefox, this lock protected the data when a user changed their master password. This vulnerability affects Firefox ESR < 102.2 and Thunderbird < 102.2.

Dangling pointer

A cross-origin iframe referencing an XSLT document would inherit the parent domain's permissions (such as microphone or camera access)

CVE-2022-38473 8.8 - High - December 22, 2022

A cross-origin iframe referencing an XSLT document would inherit the parent domain's permissions (such as microphone or camera access). This vulnerability affects Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.

Improper Preservation of Permissions

An attacker could have abused XSLT error handling to associate attacker-controlled content with another origin

CVE-2022-38472 6.5 - Medium - December 22, 2022

An attacker could have abused XSLT error handling to associate attacker-controlled content with another origin which was displayed in the address bar. This could have been used to fool the user into submitting data intended for the spoofed origin. This vulnerability affects Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.

Origin Validation Error

When combining CSS properties for overflow and transform, the mouse cursor could interact with different coordinates than displayed

CVE-2022-36319 7.5 - High - December 22, 2022

When combining CSS properties for overflow and transform, the mouse cursor could interact with different coordinates than displayed. This vulnerability affects Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thunderbird < 91.12.

When visiting directory listings for `chrome://` URLs as source text, some parameters were reflected

CVE-2022-36318 5.3 - Medium - December 22, 2022

When visiting directory listings for `chrome://` URLs as source text, some parameters were reflected. This vulnerability affects Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thunderbird < 91.12.

Race Condition

If there was a PAC URL set and the server

CVE-2022-34472 4.3 - Medium - December 22, 2022

If there was a PAC URL set and the server that hosts the PAC was not reachable, OCSP requests would have been blocked, resulting in incorrect error pages being shown. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Session history navigations may have led to a use-after-free and potentially exploitable crash

CVE-2022-34470 9.8 - Critical - December 22, 2022

Session history navigations may have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Dangling pointer

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers

CVE-2021-43539 8.8 - High - December 08, 2021

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Dangling pointer

An incorrect type conversion of sizes from 64bit to 32bit integers

CVE-2021-43537 8.8 - High - December 08, 2021

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Incorrect Type Conversion or Cast

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped

CVE-2021-43541 6.5 - Medium - December 08, 2021

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols

CVE-2021-43542 6.5 - Medium - December 08, 2021

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Generation of Error Message Containing Sensitive Information

The iframe sandbox rules were not correctly applied to XSLT stylesheets

CVE-2021-38503 10 - Critical - December 08, 2021

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

AuthZ

Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user

CVE-2021-38506 4.3 - Medium - December 08, 2021

Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Clickjacking