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[gentoo-announce] [ GLSA 201401-27 ] GNU TeXmacs: Privilege escalation

Posted on 26 January 2014
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201401-27
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http://security.gentoo.org/
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Severity: High
Title: GNU TeXmacs: Privilege escalation
Date: January 26, 2014
Bugs: #337532
ID: 201401-27

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Synopsis
========
A vulnerability in GNU TeXmacs could result in privilege escalation.

Background
==========
GNU TeXmacs is a free WYSIWYG editing platform with special features
for scientists.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-office/texmacs < 1.0.7.2-r1 >= 1.0.7.2-r1

Description
===========
The texmacs and tm_mupad_help scripts in TeXmacs place a zero-length
directory name in the LD_LIBRARY_PATH, which might result in the
current working directory (.) to be included when searching for
dynamically linked libraries.

Impact
======
A local attacker could gain escalated privileges via a specially
crafted shared library.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All GNU TeXmacs users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/texmacs-1.0.7.2-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since April 02, 2011. It is likely that your system is
already no longer affected by this issue.

References
==========
[ 1 ] CVE-2010-3394
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-3394

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

http://security.gentoo.org/glsa/glsa-201401-27.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
https://bugs.gentoo.org.

License
=======
Copyright 2014 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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