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

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Date: Thu, 12 Feb 2009 22:49:08 +0100
From: Pierre-Yves Rofes <py@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200902-04 ] xterm: User-assisted arbitrary
	commands execution

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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@...too.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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