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CVE-2023-4576

Published: 11 September 2023

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.

Notes

AuthorNote
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

Priority

Negligible

Cvss 3 Severity Score

8.6

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
focal Ignored
(only affects macOS)
jammy Ignored
(only affects macOS)
lunar Ignored
(end of life, was ignored [only affects macOS])
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
mozjs102
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Ignored
(only affects macOS)
lunar Ignored
(end of life, was ignored [only affects macOS])
trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

mozjs38
Launchpad, Ubuntu, Debian
bionic Ignored
(only affects macOS)
focal Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Ignored
(only affects macOS)
focal Ignored
(only affects macOS)
jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

mozjs68
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(only affects macOS)
jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

mozjs78
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Ignored
(only affects macOS)
lunar Ignored
(end of life, was ignored [only affects macOS])
trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

mozjs91
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Ignored
(only affects macOS)
lunar Does not exist

trusty Does not exist

upstream Ignored
(only affects macOS)
xenial Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
focal Ignored
(only affects Windows)
jammy Ignored
(only affects Windows)
lunar Ignored
(end of life, was ignored [only affects Windows])
trusty Ignored
(end of standard support)
upstream Ignored
(only affects macOS)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 8.6
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