CVE-2021-43535
Description
A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.
Risk Information
Base Score
8.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
1.63
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerability CVE-2021-43535 are affected in Mozilla Firefox (x64) 92.0 | Windows |
| Vulnerability CVE-2021-43535 are affected in Mozilla Firefox 92.0 | Windows |
| Multiple Vulnerabilities are affected in Mozilla Firefox (x64) 92.99 | Windows |
| Multiple Vulnerabilities are affected in Mozilla_Firefox 92.99 | Windows |
| Vulnerabilities CVE-2021-43535 are affected in Mozilla Firefox (x64) 91.2.99 | Windows |
| Vulnerabilities CVE-2021-43535 are affected in Mozilla_Firefox 91.2.99 | Windows |
| Multiple Vulnerabilities are affected in Mozilla Firefox for Mac 92.0 | Mac |
| Multiple Vulnerabilities are affected in Firefox ESR for Mac 91.2 | Mac |
| Multiple Vulnerabilities are affected in Mozilla Firefox for Mac 91.2 | Mac |
| Multiple Vulnerabilities are affected in Mozilla Thunderbird for Mac 91.2 | Mac |
| firefox-esr security update(DSA-5026-1) firefox-esr_91.4.1esr-1~deb11u1_amd64.deb | Linux |
| thunderbird security update(DSA-5034-1) thunderbird_91.4.1-1~deb10u1_i386.deb | Linux |
| thunderbird security update(DSA-5034-1) thunderbird_91.4.1-1~deb10u1_amd64.deb | Linux |
| thunderbird security update(DSA-5034-1) thunderbird_91.4.1-1~deb11u1_amd64.deb | Linux |
| Mozilla Open Source mail and newsgroup client (USN-5248-1) thunderbird_91.5.0+build1-0ubuntu0.18.04.1_i386.deb | Linux |
| Mozilla Open Source mail and newsgroup client (USN-5248-1) thunderbird_91.5.0+build1-0ubuntu0.18.04.1_amd64.deb | Linux |
| Mozilla Open Source mail and newsgroup client (USN-5248-1) thunderbird_91.5.0+build1-0ubuntu0.20.04.1_amd64.deb | Linux |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-321584 | Mozilla Firefox (x64) (92.0.1) |
| PATCH-343015 | Mozilla Firefox (132.0.2) |
| PATCH-611870 | Mozilla Firefox For Mac (142.0.1) |
| PATCH-611808 | Mozilla Firefox ESR for MAC 128.14.0 |
| PATCH-611870 | Mozilla Firefox For Mac (142.0.1) |
| PATCH-611807 | Mozilla Thunderbird For Mac (142.0) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234