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Gentoo Linux Security Advisory                           GLSA 200510-18
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                                            https://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       < 10.29                          >= 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 ">=media-libs/netpbm-10.29"

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

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

  https://security.gentoo.org/glsa/200510-18

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 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.

https://creativecommons.org/licenses/by-sa/2.0/