CVE-2023-4576

Publication date 11 September 2023

Last updated 26 August 2025

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

8.6 · High

Score breakdown

Description

On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

Read the notes from the security team

Status

Package Ubuntu Release Status
firefox 23.04 lunar Ignored end of life, was ignored [only affects macOS]
22.04 LTS jammy Ignored only affects macOS
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
thunderbird 23.04 lunar Ignored end of life, was ignored [only affects Windows]
22.04 LTS jammy Ignored only affects Windows
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
mozjs38 23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored only affects macOS
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs52 23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored only affects macOS
18.04 LTS bionic Ignored only affects macOS
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs68 23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored only affects macOS
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs78 23.04 lunar Ignored end of life, was ignored [only affects macOS]
22.04 LTS jammy Ignored only affects macOS
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs91 23.04 lunar Not in release
22.04 LTS jammy Ignored only affects macOS
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs102 23.04 lunar Ignored end of life, was ignored [only affects macOS]
22.04 LTS jammy Ignored only affects macOS
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty 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

Severity score breakdown

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

References

Other references