---

Gentoo Linux Security Advisory GLSA 200503-05

---

                                        http://security.gentoo.org/

---

Severity: Normal
Title: xli, xloadimage: Multiple vulnerabilities
Date: March 02, 2005
Bugs: #79762
ID: 200503-05

---

Synopsis

xli and xloadimage are vulnerable to multiple issues, potentially
leading to the execution of arbitrary code.

Background

xli and xloadimage are X11 utilities for displaying and manipulating a
wide range of image formats.

Affected packages

-------------------------------------------------------------------
 Package               /   Vulnerable   /               Unaffected
-------------------------------------------------------------------

1 media-gfx/xloadimage < 4.1-r2 >= 4.1-r2
2 media-gfx/xli < 1.17.0-r1 >= 1.17.0-r1
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description

Tavis Ormandy of the Gentoo Linux Security Audit Team has reported that
xli and xloadimage contain a flaw in the handling of compressed images,
where shell meta-characters are not adequately escaped. Rob Holland of
the Gentoo Linux Security Audit Team has reported that an xloadimage
vulnerability in the handling of Faces Project images discovered by
zen-parse in 2001 remained unpatched in xli. Additionally, it has been
reported that insufficient validation of image properties in xli could
potentially result in buffer management errors.

Impact

Successful exploitation would permit a remote attacker to execute
arbitrary shell commands, or arbitrary code with the privileges of the
xloadimage or xli user.

Workaround

There is no known workaround at this time.

Resolution

All xli users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/xli-1.17.0-r1"

All xloadimage users should also upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/xloadimage-4.1-r2"

References

[ 1 ] CAN-2001-0775
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0775

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200503-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.

License

Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0