bugtraq - [ GLSA 200509-02 ] Gnumeric: Heap overflow in the included PCRE library

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Date: Sat, 03 Sep 2005 11:15:51 +0200
From: Thierry Carrez <koon@...too.org>
To: gentoo-announce@...ts.gentoo.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200509-02 ] Gnumeric: Heap overflow in the
	included PCRE library

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Gentoo Linux Security Advisory                           GLSA 200509-02
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Gnumeric: Heap overflow in the included PCRE library
      Date: September 03, 2005
      Bugs: #104010
        ID: 200509-02

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Synopsis
========

Gnumeric is vulnerable to a heap overflow, possibly leading to the
execution of arbitrary code.

Background
==========

The Gnumeric spreadsheet is a versatile application developed as part
of the GNOME Office project. libpcre is a library providing functions
for Perl-compatible regular expressions.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  app-office/gnumeric     < 1.4.3-r2                    >= 1.4.3-r2

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

Gnumeric contains a private copy of libpcre which is subject to an
integer overflow leading to a heap overflow (see GLSA 200508-17).

Impact
======

An attacker could potentially exploit this vulnerability by tricking a
user into opening a specially crafted spreadsheet, which could lead to
the execution of arbitrary code with the privileges of the user running
Gnumeric.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Gnumeric users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/gnumeric-1.4.3-r2"

References
==========

  [ 1 ] CAN-2005-2491
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2491
  [ 2 ] GLSA 200508-17
        http://www.gentoo.org/security/en/glsa/glsa-200508-17.xml

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

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

  http://security.gentoo.org/glsa/glsa-200509-02.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 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/2.0

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