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LessTif: Integer and stack overflows in libXpm


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200410-09 / lesstif
Release Date October 09, 2004
Latest Revision October 09, 2004: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
x11-libs/lesstif < 0.93.97 >= 0.93.97 All supported architectures

Related bugreports: #66647


Multiple vulnerabilities have been discovered in libXpm, which is included in LessTif, that can potentially lead to remote code execution.

2.  Impact Information


LessTif is a clone of OSF/Motif, which is the standard user interface toolkit available on Unix and Linux.


Chris Evans has discovered various integer and stack overflows in libXpm, which is shipped as a part of the X Window System. LessTif, an application that includes this library, is susceptible to the same issues.


A carefully-crafted XPM file could crash applications that are linked against libXpm, such as LessTif, potentially allowing the execution of arbitrary code with the privileges of the user running the application.

3.  Resolution Information


There is no known workaround at this time.


All LessTif users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge sync
# emerge -pv ">=x11-libs/lesstif-0.93.97"
# emerge ">=x11-libs/lesstif-0.93.97"

4.  References


Page updated October 09, 2004

Summary: This is a Gentoo Linux Security Advisory

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