Description
`NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows `phKey` to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 133.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= unspecified, < 133 |
| Mozilla | Thunderbird | >= unspecified, < 133 |
| mozilla | firefox | < 133 |
| mozilla | thunderbird | < 133 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1921768Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-63/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-67/Vendor Advisory
Timeline
- Published
- Nov 26, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed