Gentoo Linux Security Advisory 202201-01 ≈ Packet Storm

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Gentoo Linux Security Advisory 202201-01^[6]: Authored by Gentoo ^[7] | Site security.gentoo.org ^[8]; Gentoo Linux Security Advisory 202201-1 - A vulnerability in polkit could lead to local root privilege escalation. Versions less than 0.120-r2 are affected.; systems | linux ^[9], gentoo ^[10]; advisories | CVE-2021-4034 ^[11]; MD5 | 89c466a67b9ca3e84b4136a2d6c335e4; Download ^[12] | Favorite ^[13] | View ^[14]

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Gentoo Linux Security Advisory                           GLSA 202201-01
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https://security.gentoo.org/
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Severity: High
Title: Polkit: Local privilege escalation
Date: January 27, 2022
Bugs: #832057
ID: 202201-01
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Synopsis
========
A vulnerability in polkit could lead to local root privilege escalation.
Background
==========
polkit is a toolkit for managing policies related to unprivileged
processes communicating with privileged process.
Affected packages
=================
-------------------------------------------------------------------
Package              /     Vulnerable     /            Unaffected
-------------------------------------------------------------------
1  sys-auth/polkit            < 0.120-r2                >= 0.120-r2
Description
===========
Flawed input validation of arguments was discovered in the 'pkexec'
program's main() function.
Impact
======
A local attacker could achieve root privilege escalation.
Workaround
==========
Run the following command as root:
# chmod 0755 /usr/bin/pkexec
Resolution
==========
Upgrade Polkit to a patched version.
emerge --ask --verbose ">=sys-auth/polkit-0.120-r2"
References
==========
[ 1 ] CVE-2021-4034
https://nvd.nist.gov/vuln/detail/CVE-2021-4034
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202201-01
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
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License
=======
Copyright 2022 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5