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a3li 09/08/01 20:02:41 |
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Added: glsa-200908-02.xml |
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Log: |
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GLSA 200908-02 |
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|
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Revision Changes Path |
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1.1 xml/htdocs/security/en/glsa/glsa-200908-02.xml |
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|
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file : http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/security/en/glsa/glsa-200908-02.xml?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/security/en/glsa/glsa-200908-02.xml?rev=1.1&content-type=text/plain |
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|
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Index: glsa-200908-02.xml |
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=================================================================== |
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<?xml version="1.0" encoding="utf-8"?> |
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> |
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> |
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
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|
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<glsa id="200908-02"> |
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<title>BIND: Denial of Service</title> |
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<synopsis> |
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Dynamic Update packets can cause a Denial of Service in the BIND daemon. |
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</synopsis> |
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<product type="ebuild">bind</product> |
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<announced>August 01, 2009</announced> |
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<revised>August 01, 2009: 01</revised> |
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<bug>279508</bug> |
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<access>remote</access> |
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<affected> |
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<package name="net-dns/bind" auto="yes" arch="*"> |
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<unaffected range="ge">9.4.3_p3</unaffected> |
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<vulnerable range="lt">9.4.3_p3</vulnerable> |
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</package> |
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</affected> |
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<background> |
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<p> |
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ISC BIND is the Internet Systems Consortium implementation of the |
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Domain Name System (DNS) protocol. |
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</p> |
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</background> |
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<description> |
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<p> |
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Matthias Urlichs reported that the dns_db_findrdataset() function fails |
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when the prerequisite section of the dynamic update message contains a |
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record of type "ANY" and where at least one RRset for this FQDN exists |
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on the server. |
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</p> |
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</description> |
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<impact type="normal"> |
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<p> |
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A remote unauthenticated attacker could send a specially crafted |
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dynamic update message to the BIND daemon (named), leading to a Denial |
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of Service (daemon crash). This vulnerability affects all primary |
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(master) servers -- it is not limited to those that are configured to |
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allow dynamic updates. |
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</p> |
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</impact> |
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<workaround> |
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<p> |
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Configure a firewall that performs Deep Packet Inspection to prevent |
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nsupdate messages from reaching named. Alternatively, expose only |
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secondary (slave) servers to untrusted networks. |
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</p> |
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</workaround> |
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<resolution> |
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<p> |
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All BIND users should upgrade to the latest version: |
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</p> |
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<code> |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-dns/bind-9.4.3_p3"</code> |
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</resolution> |
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<references> |
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0696">CVE-2009-0696</uri> |
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<uri link="https://www.isc.org/node/474">ISC advisory</uri> |
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</references> |
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<metadata tag="submitter" timestamp="Tue, 28 Jul 2009 21:43:47 +0000"> |
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rbu |
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</metadata> |
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<metadata tag="bugReady" timestamp="Sat, 01 Aug 2009 20:00:21 +0000"> |
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a3li |
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</metadata> |
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</glsa> |
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