GLSA 201206-29: mount-cifs: Multiple vulnerabilites

http://security.gentoo.org/

Severity:	normal
Title:	mount-cifs: Multiple vulnerabilites
Date:	06/25/2012
Bugs:	#308067
ID:	201206-29

Synopsis

Multiple vulnerabilities were found in mount-cifs, the worst of which leading to privilege escalation.

Background

mount-cifs is the cifs filesystem mount helper split from Samba.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-fs/mount-cifs	<= 3.0.30		All supported architectures

Description

Multiple vulnerabilities have been discovered in mount-cifs. Please review the CVE identifiers referenced below for details.

Impact

The vulnerabilities allow local users to cause a denial of service (mtab corruption) via a crafted string. Also, local users could mount a CIFS share on an arbitrary mountpoint, and gain privileges via a symlink attack on the mountpoint directory file.

Workaround

There is no known workaround at this time.

Resolution

Gentoo has discontinued support for mount-cifs. We recommend that users unmerge mount-cifs:

      # emerge --unmerge "net-fs/mount-cifs"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201206-29.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.