Gentoo alert 201207-07 (keepalived)

From:
    	     
 
Sean Amoss <ackle@gentoo.org> 
To:
    	     
 
gentoo-announce@gentoo.org 
Subject:
    	     
 
[gentoo-announce] [ GLSA 201207-07 ] Keepalived: Denial of Service 
Date:
    	     
 
Mon, 09 Jul 2012 19:48:48 -0400
Message-ID:
    	     
 
<4FFB6DE0.1000602@gentoo.org>
Archive-link:
    	     
 
Article, Thread
              
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201207-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: Keepalived: Denial of Service
     Date: July 09, 2012
     Bugs: #371469
       ID: 201207-07

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

Synopsis
========

Keepalived uses world-writable PID files, allowing a local attacker to
kill arbitrary processes.

Background
==========

Keepalived is a strong & robust keepalive facility to the Linux Virtual
Server project.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-cluster/keepalived      < 1.2.2-r3               >= 1.2.2-r3

Description
===========

The "pidfile_write()" function in pidfile.c in Keepalived writes PID
files with insecure permissions.

Impact
======

A local attacker may be able to cause a Denial of Service of arbitrary
processes.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Keepalived users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=sys-cluster/keepalived-1.2.2-r3"

References
==========

[ 1 ] CVE-2011-1784
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1784

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 http://security.gentoo.org/glsa/glsa-201207-07.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