CVE-2024-11705

firefox: thunderbird: Null Pointer Dereference in NSC_DeriveKey

Published Nov 26, 2024 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-7134-1 Firefox vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla thunderbird
Weaknesses CWE-476
CPEs cpe:2.3:a:mozilla:firefox:-:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:-:*:*:*:*:*:*:*
Vendors & Products Mozilla
Mozilla firefox
Mozilla thunderbird
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'}

Type Values Removed Values Added
Title firefox: thunderbird: Null Pointer Dereference in NSC_DeriveKey
Weaknesses CWE-125
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Low

Type Values Removed Values Added
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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Nov 27, 2024, 3:14 PM
Reserved
Nov 25, 2024, 4:29 PM
Status
Analyzed
Published
Nov 26, 2024, 2:15 PM
Modified
Jun 17, 2026, 6:58 AM
Severity
Low
Public date
Nov 26, 2024, 1:34 PM