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Red Hat: RHSA-2021:2238-01 Important: Polkit Local Escalation

red hat
Calendar Grey June 3, 2021
Dist Redhat Esm H88
Crucial polkit patch for Red Hat Enterprise Linux 8 resolves local privilege escalation vulnerability (CVE-2021-3560).
An update for polkit is now available for Red Hat Enterprise Linux 8

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 using polkit_system_bus_name_get_creds_sync() (CVE-2021-3560)
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 Red Hat software patch important local escalation updates polkit update

References

https://access.redhat.com/security/cve/CVE-2021-3560 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: polkit-0.115-11.el8_4.1.src.rpm
aarch64: polkit-0.115-11.el8_4.1.aarch64.rpm polkit-debuginfo-0.115-11.el8_4.1.aarch64.rpm polkit-debugsource-0.115-11.el8_4.1.aarch64.rpm polkit-devel-0.115-11.el8_4.1.aarch64.rpm polkit-libs-0.115-11.el8_4.1.aarch64.rpm polkit-libs-debuginfo-0.115-11.el8_4.1.aarch64.rpm
noarch: polkit-docs-0.115-11.el8_4.1.noarch.rpm
ppc64le: polkit-0.115-11.el8_4.1.ppc64le.rpm polkit-debuginfo-0.115-11.el8_4.1.ppc64le.rpm polkit-debugsource-0.115-11.el8_4.1.ppc64le.rpm polkit-devel-0.115-11.el8_4.1.ppc64le.rpm polkit-libs-0.115-11.el8_4.1.ppc64le.rpm polkit-libs-debuginfo-0.115-11.el8_4.1.ppc64le.rpm
s390x: polkit-0.115-11.el8_4.1.s390x.rpm polkit-debuginfo-0.115-11.el8_4.1.s390x.rpm polkit-debugsource-0.115-11.el8_4.1.s390x.rpm polkit-devel-0.115-11.el8_4.1.s390x.rpm polkit-libs-0.115-11.el8_4.1.s390x.rpm polkit-libs-debuginfo-0.115-11.el8_4.1.s390x.rpm
x86_64: polkit-0.115-11.el8_4.1.x86_64.rpm polkit-debuginfo-0.115-11.el8_4.1.i686.rpm polkit-debuginfo-0.115-11.el8_4.1.x86_64.rpm polkit-debugsource-0.115-11.el8_4.1.i686.rpm polkit-debugsource-0.115-11.el8_4.1.x86_64.rpm polkit-devel-0.115-11.el8_4.1.i686.rpm polkit-devel-0.115-11.el8_4.1.x86_64.rpm polkit-libs-0.115-11.el8_4.1.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2238-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2238
Issue date: 2021-06-03

Topic

An update for polkit is now available for Red Hat Enterprise Linux 8.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 Red Hat software patch important local escalation updates polkit update

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1961710 - CVE-2021-3560 polkit: local privilege escalation using polkit_system_bus_name_get_creds_sync()

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