Calligra: User-assisted execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201209-10 / calligra
Release Date	September 25, 2012
Latest Revision	September 25, 2012: 1
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-office/calligra	< 2.4.3-r1	>= 2.4.3-r1	All supported architectures

Related bugreports: #428890

Synopsis

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

2. Impact Information

Background

Calligra is an office suite by KDE.

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Calligra users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4. References

CVE-2012-3456

Page updated September 25, 2012

Summary: This is a Gentoo Linux Security Advisory

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