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Gentoo Linux Security Advisory                           GLSA 201209-10
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                                            https://security.gentoo.org/
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 Severity: Normal
    Title: Calligra: User-assisted execution of arbitrary code
     Date: September 25, 2012
     Bugs: #428890
       ID: 201209-10

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Synopsis
=======
A buffer overflow vulnerability in Calligra could result in the
execution of arbitrary code.

Background
=========
Calligra is an office suite by KDE.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-office/calligra         < 2.4.3-r1               >= 2.4.3-r1

Description
==========
An error in the read() function in styles.cpp could cause a heap-based
buffer overflow.

Impact
=====
A remote attacker could entice a user to open a specially crafted ODF
file, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-office/calligra-2.4.3-r1"

References
=========
[ 1 ] CVE-2012-3456
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3456

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

 https://security.gentoo.org/glsa/201209-10

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 2012 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/