Home / mailings [gentoo-announce] [ GLSA 200909-10 ] LMBench: Insecure temporary file usage
Posted on 09 September 2009
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Gentoo Linux Security Advisory GLSA 200909-10
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http://security.gentoo.org/
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Severity: Normal
Title: LMBench: Insecure temporary file usage
Date: September 09, 2009
Bugs: #246015
ID: 200909-10
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Synopsis
========
Multiple insecure temporary file usage issues have been reported in
LMBench, allowing for symlink attacks.
Background
==========
LMBench is a suite of simple, portable benchmarks for UNIX platforms.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-benchmarks/lmbench <= 3 Vulnerable!
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NOTE: Certain packages are still vulnerable. Users should migrate
to another package if one is available or wait for the
existing packages to be marked stable by their
architecture maintainers.
Description
===========
Dmitry E. Oboukhov reported that the rccs and STUFF scripts do not
handle "/tmp/sdiff.#####" temporary files securely. NOTE: There might
be further occurances of insecure temporary file usage.
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
==========
LMBench has been removed from Portage. We recommend that users unmerge
LMBench:
# emerge --unmerge app-benchmarks/lmbench
References
==========
[ 1 ] CVE-2008-4968
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4968
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200909-10.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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