[manjaro-security] [ASA-202105-5] firefox: arbitrary code execution
Jonas Witschel via arch-security
arch-security at lists.archlinux.org
Thu May 20 20:04:04 CEST 2021
Arch Linux Security Advisory ASA-202105-5
=========================================
Severity: High
Date : 2021-05-19
CVE-ID : CVE-2021-29952
Package : firefox
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-1917
Summary
=======
The package firefox before version 88.0.1-1 is vulnerable to arbitrary
code execution.
Resolution
==========
Upgrade to 88.0.1-1.
# pacman -Syu "firefox>=88.0.1-1"
The problem has been fixed upstream in version 88.0.1.
Workaround
==========
None.
Description
===========
A security issue has been found in Firefox before version 88.0.1. When
Web Render components were destructed, a race condition could have
caused undefined behavior, and Mozilla presumes that with enough effort
may have been exploitable to run arbitrary code.
Impact
======
A remote attacker could execute arbitrary code through a crafted HTML
page.
References
==========
https://www.mozilla.org/en-US/security/advisories/mfsa2021-20/#CVE-2021-29952
https://bugzilla.mozilla.org/show_bug.cgi?id=1704227
https://security.archlinux.org/CVE-2021-29952
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