GLSA 200510-18 Netpbm: Buffer overflow in pnmtopng
Posted on: 10/20/2005 12:52 PM

A new security update has been released for Gentoo Linux - Netpbm: Buffer overflow in pnmtopng. Here the announcement:

Gentoo Linux Security Advisory GLSA 200510-18
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http://security.gentoo.org/
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Severity: Normal
Title: Netpbm: Buffer overflow in pnmtopng
Date: October 20, 2005
Bugs: #109705
ID: 200510-18

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Synopsis
========

The pnmtopng utility, part of the Netpbm tools, contains a
vulnerability which can potentially result in the execution of
arbitrary code.

Background
==========

Netpbm is a package of 220 graphics programs and a programming library,
including pnmtopng, a tool to convert PNM image files to the PNG
format.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/netpbm lt; 10.29 gt;= 10.29

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

RedHat reported that pnmtopng is vulnerable to a buffer overflow.

Impact
======

An attacker could craft a malicious PNM file and entice a user to run
pnmtopng on it, potentially resulting in the execution of arbitrary
code with the permissions of the user running pnmtopng.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Netpbm users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=media-libs/netpbm-10.29"

References
==========

[ 1 ] CAN-2005-2978
http://cve.mitre.org/cgi-bin/cvename.cgi?nameƊN-2005-2978

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

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

http://security.gentoo.org/glsa/glsa-200510-18.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@gentoo.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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