MFSA2024-63 Firefox: Security Vulnerabilities fixed in Firefox 133 (CVE-2024-11696)

MFSA2024-63 Firefox: Security Vulnerabilities fixed in Firefox 133 (CVE-2024-11696)

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

11/26/2024

Created

11/28/2024

Added

11/27/2024

Modified

11/29/2024

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.

Solution(s)

• mozilla-firefox-upgrade-133_0

References

• https://attackerkb.com/topics/cve-2024-11696
• CVE - 2024-11696
• http://www.mozilla.org/security/announce/2024/mfsa2024-63.html