[gentoo-announce] [ GLSA 201206-29 ] mount-cifs: Multiple vulnerabilites

[news 28]

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Gentoo Linux Security Advisory GLSA 201206-29

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http://security.gentoo.org/

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Severity: Normal

Title: mount-cifs: Multiple vulnerabilites

Date: June 25, 2012

Bugs: #308067

ID: 201206-29

 

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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

-------------------------------------------------------------------

1 net-fs/mount-cifs < 3.4.6 >= 3.4.6

 

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

==========

 

All mount-cifs users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=net-fs/mount-cifs-3.4.6"

 

References

==========

 

[ 1 ] CVE-2010-0547

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0547

[ 2 ] CVE-2010-0787

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0787

 

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 ( -at -) gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2012 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5