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Gentoo Linux Security Advisory GLSA 201406-06
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http://security.gentoo.org/
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Severity: High
Title: Mumble: Multiple vulnerabilities
Date: June 06, 2014
Bugs: #500486, #510380
ID: 201406-06

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Synopsis
========

Multiple vulnerabilities have been found in Mumble, the worst of which
could lead to arbitrary code execution.

Background
==========

Mumble is low-latency voice chat software intended for use with gaming.

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

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 media-sound/mumble < 1.2.6 >= 1.2.6

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

Multiple vulnerabilities have been discovered in Mumble:

* A crafted length prefix value can trigger a heap-based buffer
overflow or NULL pointer dereference in the
opus_packet_get_samples_per_frame function (CVE-2014-0044)
* A crafted packet can trigger an error in the opus_decode_float
function, leading to a heap-based buffer overflow (CVE-2014-0045)
* A crafted SVG referencing local files can lead to resource exhaustion
or hangs (CVE-2014-3755)
* Mumble does not properly escape HTML in some external strings before
displaying them (CVE-2014-3756)

Impact
======

A remote attacker could possibly execute arbitrary code with the
privileges of the process or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mumble users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=media-sound/mumble-1.2.6”

References
==========

[ 1 ] CVE-2014-0044
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0044
[ 2 ] CVE-2014-0045
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0045
[ 3 ] CVE-2014-3755
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3755
[ 4 ] CVE-2014-3756
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3756

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

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

http://security.gentoo.org/glsa/glsa-201406-06.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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