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Red Hat Security Advisory 2021-2238-01

Red Hat Security Advisory 2021-2238-01
Posted Jun 3, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2238-01 - 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. Issues addressed include a privilege escalation vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-3560
MD5 | 44ea276e2a9b9351b510e971657f91a3

Red Hat Security Advisory 2021-2238-01

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====================================================================
Red Hat Security Advisory

Synopsis: Important: polkit security update
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
CVE Names: CVE-2021-3560
====================================================================
1. Summary:

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 impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

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

3. Description:

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. 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
polkit-libs-0.115-11.el8_4.1.x86_64.rpm
polkit-libs-debuginfo-0.115-11.el8_4.1.i686.rpm
polkit-libs-debuginfo-0.115-11.el8_4.1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

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

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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