CVE-2024-3857

2024-04-1600:00:00

ubuntu.com

jit

use-after-free

firefox vulnerability

garbage collection

mozilla

ubuntu

snap

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

5.8

Confidence

Low

EPSS

Percentile

10.3%

JSON

The JIT created incorrect code for arguments in certain cases. This led to
potential use-after-free crashes during garbage collection. This
vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird
< 115.10.

Notes

Author	Note
tyhicks	mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur	starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchfirefox< 125.0.2+build1-0ubuntu0.20.04.2UNKNOWN
ubuntu22.04noarchmozjs102< anyUNKNOWN
ubuntu24.04noarchmozjs102< anyUNKNOWN
ubuntu18.04noarchmozjs38< anyUNKNOWN
ubuntu18.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs68< anyUNKNOWN
ubuntu22.04noarchmozjs78< anyUNKNOWN
ubuntu22.04noarchmozjs91< anyUNKNOWN
ubuntu20.04noarchthunderbird< 1:115.10.1+build1-0ubuntu0.20.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	firefox	< 125.0.2+build1-0ubuntu0.20.04.2	UNKNOWN
ubuntu	22.04	noarch	mozjs102	< any	UNKNOWN
ubuntu	24.04	noarch	mozjs102	< any	UNKNOWN
ubuntu	18.04	noarch	mozjs38	< any	UNKNOWN
ubuntu	18.04	noarch	mozjs52	< any	UNKNOWN
ubuntu	20.04	noarch	mozjs52	< any	UNKNOWN
ubuntu	20.04	noarch	mozjs68	< any	UNKNOWN
ubuntu	22.04	noarch	mozjs78	< any	UNKNOWN
ubuntu	22.04	noarch	mozjs91	< any	UNKNOWN
ubuntu	20.04	noarch	thunderbird	< 1:115.10.1+build1-0ubuntu0.20.04.1	UNKNOWN