67 lines
2.2 KiB
XML
67 lines
2.2 KiB
XML
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<?xml version="1.0" encoding="UTF-8"?>
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<?xml-stylesheet type="text/xsl" href="/xsl/glsa.xsl"?>
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<?xml-stylesheet type="text/xsl" href="/xsl/guide.xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="201202-04">
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<title>PowerDNS: Denial of Service</title>
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<synopsis>A vulnerability in PowerDNS could allow a remote attacker to create
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a Denial of Service condition.
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</synopsis>
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<product type="ebuild">pdns</product>
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<announced>February 22, 2012</announced>
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<revised>February 22, 2012: 1</revised>
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<bug>398403</bug>
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<access>remote</access>
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<affected>
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<package name="net-dns/pdns" auto="yes" arch="*">
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<unaffected range="ge">3.0.1</unaffected>
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<vulnerable range="lt">3.0.1</vulnerable>
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</package>
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</affected>
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<background>
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<p>The PowerDNS nameserver is an authoritative-only nameserver which uses a
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flexible backend architecture.
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</p>
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</background>
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<description>
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<p>A vulnerability has been found in PowerDNS which could cause a packet
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loop of DNS responses.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could send specially crafted DNS response packets,
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possibly resulting in a Denial of Service condition.
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</p>
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</impact>
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<workaround>
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<p>PowerDNS users can set "cache-ttl=0" in /etc/powerdns/pdns.conf and then
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restart the PowerDNS daemon:
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</p>
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<code>
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# /etc/init.d/pdns restart
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</code>
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<p>Please review the PowerDNS Security Advisory below for more workaround
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details.
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</p>
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</workaround>
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<resolution>
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<p>All PowerDNS users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-dns/pdns-3.0.1"
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</code>
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</resolution>
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<references>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0206">CVE-2012-0206</uri>
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<uri link="http://doc.powerdns.com/powerdns-advisory-2012-01.html">PowerDNS
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Security Advisory 2012-01
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</uri>
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</references>
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<metadata timestamp="Fri, 27 Jan 2012 14:47:52 +0000" tag="requester">ackle</metadata>
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<metadata timestamp="Wed, 22 Feb 2012 19:50:34 +0000" tag="submitter">ackle</metadata>
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</glsa>
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