CVE-2024-7520

2024-08-0600:00:00

ubuntu.com

webassembly

code execution

firefox

thunderbird

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

6.7

Confidence

Low

EPSS

0.001

Percentile

30.4%

JSON

A type confusion bug in WebAssembly could be leveraged by an attacker to
potentially achieve code execution. This vulnerability affects Firefox <
129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Notes

Author	Note
mdeslaur	mozjs* contain a copy of the SpiderMonkey JavaScript engine. It is not feasible to backport security fixes to the mozjs* packages, as such, marking them as ignored. starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap starting with Ubuntu 24.04, the thunderbird package is just a script that installs the Thunderbird snap

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchfirefox< anyUNKNOWN
ubuntu18.04noarchmozjs38< anyUNKNOWN
ubuntu20.04noarchthunderbird< anyUNKNOWN
ubuntu22.04noarchthunderbird< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	firefox	< any	UNKNOWN
ubuntu	18.04	noarch	mozjs38	< any	UNKNOWN
ubuntu	20.04	noarch	thunderbird	< any	UNKNOWN
ubuntu	22.04	noarch	thunderbird	< any	UNKNOWN