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[gentoo-announce] [ GLSA 201402-10 ] PulseAudio: Insecure temporary file usage

Posted on 07 February 2014
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201402-10
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http://security.gentoo.org/
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Severity: Normal
Title: PulseAudio: Insecure temporary file usage
Date: February 07, 2014
Bugs: #313329
ID: 201402-10

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Synopsis
========
An insecure temporary file usage has been reported in PulseAudio,
possibly allowing symlink attacks.

Background
==========
PulseAudio is a sound system for POSIX OSes.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-sound/pulseaudio < 0.9.22 >= 0.9.22

Description
===========
The pa_make_secure_dir function in core-util.c does not handle
temporary files securely.

Impact
======
A local attacker could perform symlink attacks to overwrite arbitrary
files with the privileges of the user running the application.

Workaround
==========
There is no known workaround at this time.

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-sound/pulseaudio-0.9.22"

References
==========
[ 1 ] CVE-2009-1299
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-1299

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

http://security.gentoo.org/glsa/glsa-201402-10.xml

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 2014 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.

http://creativecommons.org/licenses/by-sa/2.5



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