[gentoo-announce] [ GLSA 201206-31 ] Linux-PAM: Multiple vulnerabilities

[news 28]

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Gentoo Linux Security Advisory GLSA 201206-31

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http://security.gentoo.org/

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Severity: High

Title: Linux-PAM: Multiple vulnerabilities

Date: June 25, 2012

Bugs: #343399, #386273, #388431

ID: 201206-31

 

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Synopsis

========

 

Multiple vulnerabilities have been found in Linux-PAM, allowing local

attackers to possibly gain escalated privileges, cause a Denial of

Service, corrupt data, or obtain sensitive information.

 

Background

==========

 

Linux-PAM (Pluggable Authentication Modules) is an architecture

allowing the separation of the development of privilege granting

software from the development of secure and appropriate authentication

schemes.

 

Affected packages

=================

 

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

Package / Vulnerable / Unaffected

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

1 sys-libs/pam < 1.1.5 >= 1.1.5

 

Description

===========

 

Multiple vulnerabilities have been discovered in Linux-PAM. Please

review the CVE identifiers referenced below for details.

 

Impact

======

 

A local attacker could use specially crafted files to cause a buffer

overflow, possibly resulting in privilege escalation or Denial of

Service. Furthermore, a local attacker could execute specially crafted

programs or symlink attacks, possibly resulting in data loss or

disclosure of sensitive information.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All Linux-PAM users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=sys-libs/pam-1.1.5"

 

NOTE: This is a legacy GLSA. Updates for all affected architectures are

available since November 25, 2011. It is likely that your system is

already no longer affected by this issue.

 

References

==========

 

[ 1 ] CVE-2010-3316

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3316

[ 2 ] CVE-2010-3430

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3430

[ 3 ] CVE-2010-3431

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3431

[ 4 ] CVE-2010-3435

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3435

[ 5 ] CVE-2010-3853

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3853

[ 6 ] CVE-2010-4706

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4706

[ 7 ] CVE-2010-4707

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4707

[ 8 ] CVE-2010-4708

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4708

[ 9 ] CVE-2011-3148

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3148

[ 10 ] CVE-2011-3149

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3149

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201206-31.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