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[gentoo-announce] [ GLSA 201311-18 ] Unbound: Denial of Service

Posted on 28 November 2013
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201311-18
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http://security.gentoo.org/
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Severity: Normal
Title: Unbound: Denial of Service
Date: November 28, 2013
Bugs: #395287
ID: 201311-18

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Synopsis
========
Multiple Denial of Service vulnerabilities have been found in Unbound.

Background
==========
Unbound is a validating, recursive, and caching DNS resolver.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/unbound < 1.4.13_p2 >= 1.4.13_p2

Description
===========
Multiple vulnerabilities have been discovered in Unbound. Please review
the CVE identifiers referenced below for details.

Impact
======
A remote attacker could possibly cause a Denial of Service condition
via a specially crafted response.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All Unbound users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/unbound-1.4.13_p2"

References
==========
[ 1 ] CVE-2011-4528
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4528
[ 2 ] CVE-2011-4869
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4869

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

http://security.gentoo.org/glsa/glsa-201311-18.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 2013 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


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