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mount-cifs: Multiple vulnerabilites

Content:

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

Synopsis

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

2.  Impact Information

Background

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

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

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



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Page updated June 25, 2012

Summary: This is a Gentoo Linux Security Advisory

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