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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201202-04">
<title>PowerDNS: Denial of Service</title>
<synopsis>A vulnerability in PowerDNS could allow a remote attacker to create
a Denial of Service condition.
<product type="ebuild">pdns</product>
<announced>February 22, 2012</announced>
<revised>February 22, 2012: 1</revised>
<package name="net-dns/pdns" auto="yes" arch="*">
<unaffected range="ge">3.0.1</unaffected>
<vulnerable range="lt">3.0.1</vulnerable>
<p>The PowerDNS nameserver is an authoritative-only nameserver which uses a
flexible backend architecture.
<p>A vulnerability has been found in PowerDNS which could cause a packet
loop of DNS responses.
<impact type="normal">
<p>A remote attacker could send specially crafted DNS response packets,
possibly resulting in a Denial of Service condition.
<p>PowerDNS users can set "cache-ttl=0" in /etc/powerdns/pdns.conf and then
restart the PowerDNS daemon:
# /etc/init.d/pdns restart
<p>Please review the PowerDNS Security Advisory below for more workaround
<p>All PowerDNS users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=net-dns/pdns-3.0.1"
<uri link="">CVE-2012-0206</uri>
<uri link="">PowerDNS
Security Advisory 2012-01
<metadata timestamp="Fri, 27 Jan 2012 14:47:52 +0000" tag="requester">ackle</metadata>
<metadata timestamp="Wed, 22 Feb 2012 19:50:34 +0000" tag="submitter">ackle</metadata>