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

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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
security@gentoo.org 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


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