CVE-2024-4771

Publication date 14 May 2024

Last updated 26 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.6 · High

Score breakdown

Description

A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 126.

Read the notes from the security team

Status

Package Ubuntu Release Status
firefox 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 126.0+build2-0ubuntu0.20.04.1
thunderbird 24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needed
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
mozjs38 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
mozjs52 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
18.04 LTS bionic Ignored
mozjs68 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
mozjs78 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
mozjs91 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
mozjs102 24.04 LTS noble Ignored
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy Ignored
20.04 LTS focal Not in release

Notes

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 starting with Ubuntu 24.04, the thunderbird package is just a script that installs the Thunderbird snap

Severity score breakdown

Parameter Value
Base score 8.6 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References

Related Ubuntu Security Notices (USN)

Other references