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Gentoo Linux Security Advisory                           GLSA 201508-02
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libgadu: Multiple vulnerabilities
     Date: August 15, 2015
     Bugs: #490238, #505558, #510714
       ID: 201508-02

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Synopsis
=======
Multiple vulnerabilities have been found in libgadu, the worst of which
may result in execution of arbitrary code.

Background
=========
libgadu is a library that implements the client side of the Gadu-Gadu
protocol.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-libs/libgadu             < 1.12.0                  >= 1.12.0

Description
==========
libgadu contains multiple vulnerabilities:

* X.509 certificates are not properly validated (CVE-2013-4488)
* A integer overflow error could lead to a buffer overflow
  (CVE-2013-6487)
* Malformed responses from a Gadu-Gadu file relay server are not
  properly handled (CVE-2014-3775)

Impact
=====
A remote attacker may be able to execute arbitrary code with the
privileges of the process, cause a Denial of Service condition, or
spoof servers.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-libs/libgadu-1.12.0"

References
=========
[ 1 ] CVE-2013-4488
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4488
[ 2 ] CVE-2013-6487
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6487
[ 3 ] CVE-2014-3775
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3775

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

 https://security.gentoo.org/glsa/201508-02

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 2015 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/