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  TkMan symbolic links vulnerability

From:GENTOO
Date:10.09.2009
Subject:[ GLSA 200909-07 ] TkMan: Insecure temporary file usage

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Gentoo Linux Security Advisory                           GLSA 200909-07
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                                           http://security.gentoo.org/
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 Severity: Normal
    Title: TkMan: Insecure temporary file usage
     Date: September 09, 2009
     Bugs: #247540
       ID: 200909-07

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Synopsis
========

An insecure temporary file usage has been reported in TkMan, allowing
for symlink attacks.

Background
==========

TkMan is a graphical, hypertext manual page and Texinfo browser for
UNIX.

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

   -------------------------------------------------------------------
    Package         /  Vulnerable  /                       Unaffected
   -------------------------------------------------------------------
 1  app-text/tkman      < 2.2-r1                            >= 2.2-r1

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

Dmitry E. Oboukhov reported that TkMan does not handle the
"/tmp/tkman#####" and "/tmp/ll" temporary files securely.

Impact
======

A local attacker could perform symlink attacks to overwrite arbitrary
files with the privileges of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All TkMan users should upgrade to the latest version:

   # emerge --sync
   # emerge --ask --oneshot --verbose =app-text/tkman-2.2-r1

References
==========

 [ 1 ] CVE-2008-5137
       http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5137

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

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

 http://security.gentoo.org/glsa/glsa-200909-07.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 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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