Gentoo Logo

mount-cifs: Multiple vulnerabilites


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201206-29 / mount-cifs
Release Date June 25, 2012
Latest Revision February 02, 2014: 2
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-fs/mount-cifs <= 3.0.30 All supported architectures

Related bugreports: #308067


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

2.  Impact Information


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


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


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.

3.  Resolution Information


There is no known workaround at this time.


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

Code Listing 3.1: Resolution

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

4.  References


Page updated June 25, 2012

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.

Copyright 2001-2015 Gentoo Foundation, Inc. Questions, Comments? Contact us.