GLSA 200909-10: LMBench: Insecure temporary file usage

http://security.gentoo.org/

Severity:	normal
Title:	LMBench: Insecure temporary file usage
Date:	09/09/2009
Bugs:	#246015
ID:	200909-10

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

Package	Vulnerable	Unaffected	Architecture(s)
app-benchmarks/lmbench	<= 3		All supported architectures

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

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.