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Gentoo Linux Security Advisory GLSA 202003-20
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https://security.gentoo.org/
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Severity: High
Title: systemd: Heap use-after-free
Date: March 15, 2020
Bugs: #708806
ID: 202003-20

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Synopsis
========

A heap use-after-free flaw in systemd at worst might allow an attacker
to execute arbitrary code.

Background
==========

A system and service manager.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 sys-apps/systemd < 244.3 >= 244.3

Description
===========

It was found that systemd incorrectly handled certain Polkit queries.

Impact
======

A local unprivileged user, by sending a specially crafted Polkit query,
could possibly execute arbitrary code with the privileges of the
process, escalate privileges or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All systemd users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=sys-apps/systemd-244.3”

References
==========

[ 1 ] CVE-2020-1712
https://nvd.nist.gov/vuln/detail/CVE-2020-1712

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202003-20

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.

License
=======

Copyright 2020 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

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