OpenMotif, LessTif: New libXpm buffer overflows

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200503-08 / openmotif
Release Date	March 04, 2005
Latest Revision	March 04, 2005: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
x11-libs/openmotif	< 2.2.3-r3	>= 2.2.3-r3, revision >= 2.1.30-r9	All supported architectures
x11-libs/lesstif	< 0.94.0-r2	>= 0.94.0-r2	All supported architectures

Related bugreports: #83655, #83656

Synopsis

A new vulnerability has been discovered in libXpm, which is included in OpenMotif and LessTif, that can potentially lead to remote code execution.

2. Impact Information

Background

LessTif is a clone of OSF/Motif, which is a standard user interface toolkit available on Unix and Linux. OpenMotif also provides a free version of the Motif toolkit for open source applications.

Description

Chris Gilbert discovered potentially exploitable buffer overflow cases in libXpm that weren't fixed in previous libXpm security advisories.

Impact

A carefully-crafted XPM file could crash applications making use of the OpenMotif or LessTif toolkits, potentially allowing the execution of arbitrary code with the privileges of the user running the application.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All OpenMotif users should upgrade to an unaffected version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose x11-libs/openmotif

All LessTif users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/lesstif-0.94.0-r2"

4. References

CAN-2005-0605

Page updated March 04, 2005

Summary: This is a Gentoo Linux Security Advisory

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