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Netpbm: Buffer overflow in pnmtopng


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200510-18 / Netpbm
Release Date October 20, 2005
Latest Revision May 28, 2009: 06
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
media-libs/netpbm < 10.29 >= 10.29, revision >= 10.26.32, revision >= 10.26.33, revision >= 10.26.42, revision >= 10.26.43, revision >= 10.26.44, revision >= 10.26.48, revision >= 10.26.49, revision >= 10.26.52, revision >= 10.26.53, revision >= 10.26.59, revision >= 10.26.61 All supported architectures

Related bugreports: #109705


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

2.  Impact Information


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.


RedHat reported that pnmtopng is vulnerable to a buffer overflow.


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.

3.  Resolution Information


There is no known workaround at this time.


All Netpbm users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose media-libs/netpbm

4.  References


Page updated October 20, 2005

Summary: This is a Gentoo Linux Security Advisory

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