[ GLSA 200902-04 ] xterm: User-assisted arbitrary commands execution

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200902-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: xterm: User-assisted arbitrary commands execution
      Date: February 12, 2009
      Bugs: #253155
        ID: 200902-04

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Synopsis
========

An error in the processing of special sequences in xterm may lead to
arbitrary commands execution.

Background
==========

xterm is a terminal emulator for the X Window system.

Affected packages
=================

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  x11-terms/xterm        < 239                               >= 239

Description
===========

Paul Szabo reported an insufficient input sanitization when processing
Device Control Request Status String (DECRQSS) sequences.

Impact
======

A remote attacker could entice a user to display a file containing
specially crafted DECRQSS sequences, possibly resulting in the remote
execution of arbitrary commands with the privileges of the user viewing
the file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xterm users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-terms/xterm-239"

References
==========

  [ 1 ] CVE-2008-2383
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2383

Availability
============

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

  http://security.gentoo.org/glsa/glsa-200902-04.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 2009 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/2.5

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