Alerts This Week
Warning Icon 1 764
Alerts This Week
Warning Icon 1 764

Gentoo: 202201-01 High: Polkit Local Privilege Escalation

gentoo
Calendar Grey January 27, 2022
Dist Gentoo Esm H88
Stay informed about a critical Polkit privilege escalation vulnerability for Gentoo users. Immediate mitigation steps are essential to protect your systems
A vulnerability in polkit could lead to local root privilege escalation.

Summary

Flawed input validation of arguments was discovered in the 'pkexec' program's main() function.

Topics%20covered

Topics Covered

security advisory high severity gentoo local privilege escalation software update polkit

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
style>.gentoo_availability{display:block;}

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 security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: Polkit: Local privilege escalation
Date: January 27, 2022
Bugs: #832057
ID: 202201-01

Topics%20covered

Topics Covered

security advisory high severity gentoo local privilege escalation software update polkit

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.

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-auth/polkit < 0.120-r2 >= 0.120-r2

Impact

===== A local attacker could achieve root privilege escalation.

Workaround

Run the following command as root: # chmod 0755 /usr/bin/pkexec

Your message here