mount-cifs: Multiple vulnerabilites — GLSA 201206-29

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

Affected Packages

net-fs/mount-cifs on all architectures
Affected versions <= 3.0.30
Unaffected versions

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.

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

Release Date
June 25, 2012

Latest Revision
February 02, 2014: 2

Severity
normal

Exploitable
remote

Bugzilla entries