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[gentoo-announce] [ GLSA 202006-20 ] Asterisk: Root privilege escalation

Posted on 15 June 2020
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202006-20
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https://security.gentoo.org/
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Severity: High
Title: Asterisk: Root privilege escalation
Date: June 15, 2020
Bugs: #602722
ID: 202006-20

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Synopsis
========
A vulnerability was discovered in Asterisk which may allow local
attackers to gain root privileges.

Background
==========
A Modular Open Source PBX System.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/asterisk < 13.32.0-r1 >= 13.32.0-r1

Description
===========
It was discovered that Gentoo=E2=80=99s Asterisk ebuild does not properly s=et
permissions on its data directories. This only affects OpenRC systems,
as the flaw was exploitable via the init script.

Impact
======
A local attacker could escalate privileges.

Workaround
==========
Users should ensure the proper permissions are set as discussed in the
referenced bugs. Do not run /etc/init.d/asterisk checkperms.

Resolution
==========
All Asterisk users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-13.32.0-r1"

References
==========

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

https://security.gentoo.org/glsa/202006-20

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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