Vulnerability Description
During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 118 |
| Mozilla | Firefox Esr | < 115.3 |
| Mozilla | Thunderbird | < 115.3 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 39 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1851599Issue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/09/msg00034.htmlMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00015.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5506PatchThird Party Advisory
- https://www.debian.org/security/2023/dsa-5513Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-41/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-42/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-43/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1851599Issue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/09/msg00034.htmlMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00015.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5506PatchThird Party Advisory
- https://www.debian.org/security/2023/dsa-5513Third Party Advisory
FAQ
What is CVE-2023-5171?
CVE-2023-5171 is a vulnerability with a CVSS score of 6.5 (MEDIUM). During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerabili...
How severe is CVE-2023-5171?
CVE-2023-5171 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-5171?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Debian Debian Linux, Fedoraproject Fedora.