OpenMotif, AMD64 x86 emulation X libraries: Buffer overflows in libUil library

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200512-16 / openmotif
Release Date	December 28, 2005
Latest Revision	January 29, 2006: 03
Impact	low
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
x11-libs/openmotif	< 2.2.3-r8	>= 2.2.3-r8, revision >= 2.1.30-r13	All supported architectures
app-emulation/emul-linux-x86-xlibs	< 2.2.1	>= 2.2.1	AMD64

Related bugreports: #114234, #116481

Synopsis

Two buffer overflows have been discovered in libUil, part of the OpenMotif toolkit, that can potentially lead to the execution of arbitrary code.

2. Impact Information

Background

OpenMotif provides a free version of the Motif toolkit for open source applications. The OpenMotif libraries are included in the AMD64 x86 emulation X libraries, which emulate the x86 (32-bit) architecture on the AMD64 (64-bit) architecture.

Description

xfocus discovered two potential buffer overflows in the libUil library, in the diag_issue_diagnostic and open_source_file functions.

Impact

Remotely-accessible or SUID applications making use of the affected functions might be exploited to execute 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 --unmerge --verbose x11-libs/openmotif
# emerge --ask --oneshot --verbose x11-libs/openmotif

All AMD64 x86 emulation X libraries users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose app-emulation/emul-linux-x86-xlibs

4. References

Updated December 28, 2005

Summary: This is a Gentoo Linux Security Advisory

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