Facebook Hermes
By the Year
In 2023 there have been 0 vulnerabilities in Facebook Hermes . Last year Hermes had 5 security vulnerabilities published. Right now, Hermes is on track to have less security vulnerabilities in 2023 than it did last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2023 | 0 | 0.00 |
| 2022 | 5 | 9.34 |
| 2021 | 3 | 9.80 |
| 2020 | 2 | 8.65 |
| 2019 | 0 | 0.00 |
| 2018 | 0 | 0.00 |
It may take a day or so for new Hermes 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 Facebook Hermes Security Vulnerabilities
An integer conversion error in Hermes bytecode generation
CVE-2022-40138
9.8 - Critical
- October 11, 2022
An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
Incorrect Conversion between Numeric Types
A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374
CVE-2022-35289
9.8 - Critical
- October 11, 2022
A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Integer Overflow or Wraparound
An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e987ddf2bda1
CVE-2022-32234
9.8 - Critical
- October 11, 2022
An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e987ddf2bda1 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Memory Corruption
It was possible to trigger an infinite recursion condition in the error handler when Hermes executed specific maliciously formed JavaScript
CVE-2022-27810
7.5 - High
- October 06, 2022
It was possible to trigger an infinite recursion condition in the error handler when Hermes executed specific maliciously formed JavaScript. This condition was only possible to trigger in dev-mode (when asserts were enabled). This issue affects Hermes versions prior to v0.12.0.
Stack Exhaustion
By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes
CVE-2021-24044
9.8 - Critical
- January 15, 2022
By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.
Object Type Confusion
A type confusion vulnerability could be triggered when resolving the "typeof" unary operator in Facebook Hermes prior to v0.10.0
CVE-2021-24045
9.8 - Critical
- December 13, 2021
A type confusion vulnerability could be triggered when resolving the "typeof" unary operator in Facebook Hermes prior to v0.10.0. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Object Type Confusion
A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e
CVE-2021-24037
9.8 - Critical
- June 15, 2021
A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Dangling pointer
A stack overflow vulnerability in Facebook Hermes 'builtin apply' prior to commit 86543ac47e59c522976b5632b8bf9a2a4583c7d2 (https://github.com/facebook/hermes/commit/86543ac47e59c522976b5632b8bf9a2a4583c7d2)
CVE-2020-1896
9.8 - Critical
- February 02, 2021
A stack overflow vulnerability in Facebook Hermes 'builtin apply' prior to commit 86543ac47e59c522976b5632b8bf9a2a4583c7d2 (https://github.com/facebook/hermes/commit/86543ac47e59c522976b5632b8bf9a2a4583c7d2) allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Memory Corruption
An out-of-bounds read in the JavaScript Interpreter in Facebook Hermes prior to commit 8cb935cd3b2321c46aa6b7ed8454d95c75a7fca0
CVE-2020-1915
7.5 - High
- October 26, 2020
An out-of-bounds read in the JavaScript Interpreter in Facebook Hermes prior to commit 8cb935cd3b2321c46aa6b7ed8454d95c75a7fca0 allows attackers to cause a denial of service attack or possible further memory corruption via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Out-of-bounds Read
A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc
CVE-2020-1914
9.8 - Critical
- October 08, 2020
A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Always-Incorrect Control Flow Implementation
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