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.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- https://www.mozilla.org/security/advisories/mfsa2023-29/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · mozilla, debianNVD modified 2026-10-23 23:10
Affected (CPE criteria) 3
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
References 16
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843038 Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html
- https://www.debian.org/security/2023/dsa-5464 Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843038 Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html
- https://www.debian.org/security/2023/dsa-5464 Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/ Vendor Advisory