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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0570
                          unbound security update
                                30 May 2011

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           unbound
Publisher:         Debian
Operating System:  Debian GNU/Linux 5
                   Debian GNU/Linux 6
                   Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-4008  

Original Bulletin: 
   http://www.debian.org/security/2010/dsa-2243

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running unbound check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-2243-1                   security@debian.org
http://www.debian.org/security/                            Florian Weimer
May 27, 2011                           http://www.debian.org/security/faq
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Package        : unbound
Vulnerability  : design flaw
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2009-4008

It was discovered that Unbound, a caching DNS resolver, ceases to
provide answers for zones signed using DNSSEC after it has processed a
crafted query.  (CVE-2009-4008)

In addition, this update improves the level of DNSSEC support in the
lenny version of Unbound so that it is possible for system
administrators to configure the trust anchor for the root zone.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.4.6-1~lenny1.

For the other distributions (squeeze, wheezy, sid), this problem has
been fixed in version 1.4.4-1.

We recommend that you upgrade your unbound packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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===========================================================================
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