Description
The application failed to account for exceptions thrown by the `loadManifestFromFile` method during add-on signature verification. This flaw, triggered by an invalid or unsupported extension manifest, could have caused runtime errors that disrupted the signature validation process. As a result, the enforcement of signature validation for unrelated add-ons may have been bypassed. Signature validation in this context is used to ensure that third-party applications on the user's computer have not tampered with the user's extensions, limiting the impact of this issue. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.
Metrics
CVSS 3.1 5.4/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= unspecified, < 133 |
| Mozilla | Firefox ESR | >= unspecified, < 128.5 |
| Mozilla | Thunderbird | >= unspecified, < 133 |
| Mozilla | Thunderbird | >= unspecified, < 128.5 |
| mozilla | firefox | < 133 |
| mozilla | firefox_esr | < 128.5 |
| mozilla | thunderbird | < 133; < 128.5 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1929600Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-63/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-64/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-67/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-68/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/11/msg00029.html
Timeline
- Published
- Nov 26, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified