[gentoo-announce] [ GLSA 201207-07 ] Keepalived: Denial of Service

[news 28]

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Gentoo Linux Security Advisory GLSA 201207-07

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http://security.gentoo.org/

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Severity: Normal

Title: Keepalived: Denial of Service

Date: July 09, 2012

Bugs: #371469

ID: 201207-07

 

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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 ( -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