Pngcrush: User-assisted execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200805-10 / pngcrush
Release Date	May 11, 2008
Latest Revision	May 11, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-gfx/pngcrush	< 1.6.4-r1	>= 1.6.4-r1	All supported architectures

Related bugreports: #219033

Synopsis

A vulnerability in Pngcrush might result in user-assisted execution of arbitrary code.

2. Impact Information

Background

Pngcrush is a multi platform optimizer for PNG (Portable Network Graphics) files.

Description

It has been reported that Pngcrush includes a copy of libpng that is vulnerable to a memory corruption (GLSA 200804-15).

Impact

A remote attacker could entice a user to process a specially crafted PNG image, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Pngcrush users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.4-r1"

4. References

Updated May 11, 2008

Summary: This is a Gentoo Linux Security Advisory

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