OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vulnerability affects Thunderbird < 102.10.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811298 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811298 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ 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 2026-10-23 23:10
Affected (CPE criteria) 1
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
References 4
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811298 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811298 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory