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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
=================
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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@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