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Red Hat Enterprise Linux 8.2 RHSA-2022:0265-01 Important: Polkit Escalation

red hat
Calendar Grey January 25, 2022
Dist Redhat Esm H88
A critical vulnerability in polkit on RHEL could grant unprivileged users elevated access. Update and secure your systems immediately to mitigate risks
An update for polkit is now available for Red Hat Enterprise Linux 8.2 Extended Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The polkit packages provide a component for controlling system-wide privileges. This component provides a uniform and organized way for non-privileged processes to communicate with privileged ones.
Security Fix(es):
* polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector (CVE-2021-4034)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory privilege escalation Red Hat Enterprise Linux important polkit redhat advisory

References

https://access.redhat.com/security/cve/CVE-2021-4034 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-001

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source: polkit-0.115-11.el8_2.2.src.rpm
aarch64: polkit-0.115-11.el8_2.2.aarch64.rpm polkit-debuginfo-0.115-11.el8_2.2.aarch64.rpm polkit-debugsource-0.115-11.el8_2.2.aarch64.rpm polkit-devel-0.115-11.el8_2.2.aarch64.rpm polkit-libs-0.115-11.el8_2.2.aarch64.rpm polkit-libs-debuginfo-0.115-11.el8_2.2.aarch64.rpm
noarch: polkit-docs-0.115-11.el8_2.2.noarch.rpm
ppc64le: polkit-0.115-11.el8_2.2.ppc64le.rpm polkit-debuginfo-0.115-11.el8_2.2.ppc64le.rpm polkit-debugsource-0.115-11.el8_2.2.ppc64le.rpm polkit-devel-0.115-11.el8_2.2.ppc64le.rpm polkit-libs-0.115-11.el8_2.2.ppc64le.rpm polkit-libs-debuginfo-0.115-11.el8_2.2.ppc64le.rpm
s390x: polkit-0.115-11.el8_2.2.s390x.rpm polkit-debuginfo-0.115-11.el8_2.2.s390x.rpm polkit-debugsource-0.115-11.el8_2.2.s390x.rpm polkit-devel-0.115-11.el8_2.2.s390x.rpm polkit-libs-0.115-11.el8_2.2.s390x.rpm polkit-libs-debuginfo-0.115-11.el8_2.2.s390x.rpm
x86_64: polkit-0.115-11.el8_2.2.x86_64.rpm polkit-debuginfo-0.115-11.el8_2.2.i686.rpm polkit-debuginfo-0.115-11.el8_2.2.x86_64.rpm polkit-debugsource-0.115-11.el8_2.2.i686.rpm polkit-debugsource-0.115-11.el8_2.2.x86_64.rpm polkit-devel-0.115-11.el8_2.2.i686.rpm polkit-devel-0.115-11.el8_2.2.x86_64.rpm polkit-libs-0.115-11.el8_2.2.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0265-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0265
Issue date: 2022-01-25

Topic

An update for polkit is now available for Red Hat Enterprise Linux 8.2Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory privilege escalation Red Hat Enterprise Linux important polkit redhat advisory

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2025869 - CVE-2021-4034 polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector

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