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

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -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:

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

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.

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