When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811627 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-11/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811627 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-11/ 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 6.5 · mozillaNVD modified 2026-10-24 13:10
Affected (CPE criteria) 3
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
References 8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811627 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-11/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811627 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-11/ Vendor Advisory