CVE-2024-11696

firefox: thunderbird: Unhandled Exception in Add-on Signature Verification

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

The Mozilla Foundation's Security Advisory: The application can fail to account for exceptions thrown by the `loadManifestFromFile` method during add-on signature verification. This flaw is triggered by an invalid or unsupported extension manifest and could cause runtime errors that disrupt the signature validation process. As a result, the enforcement of signature validation for unrelated add-ons may be 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.

Multiple vulnerabilities have been discovered in Mozilla Firefox, the worst of which can lead to arbitrary code execution. Versions greater than or equal to 128.6.0:esr are affected.

*Credits: Rob Wu

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-11-25 CVE Reserved
2024-11-26 CVE Published
2024-11-27 EPSS Updated
2024-12-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-347: Improper Verification of Cryptographic Signature
CWE-354: Improper Validation of Integrity Check Value

CAPEC

References (7)

URL	Tag	Source
https://bugzilla.mozilla.org/show_bug.cgi?id=1929600
https://www.mozilla.org/security/advisories/mfsa2024-63
https://www.mozilla.org/security/advisories/mfsa2024-64
https://www.mozilla.org/security/advisories/mfsa2024-67
https://www.mozilla.org/security/advisories/mfsa2024-68

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-11696	2024-12-09
https://bugzilla.redhat.com/show_bug.cgi?id=2328943	2024-12-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				*		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				*		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				*		-		Affected
Slackware Search vendor "Slackware"		Slackware Linux Search vendor "Slackware" for product "Slackware Linux"				*		-		Affected