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

Posted on 12 February 2009
Gentoo-announce

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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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