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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200812-19">
<title>PowerDNS: Multiple vulnerabilities</title>
Two vulnerabilities have been discovered in PowerDNS, possibly leading to a
Denial of Service and easing cache poisoning attacks.
<product type="ebuild">pdns</product>
<announced>December 19, 2008</announced>
<revised>December 19, 2008: 01</revised>
<package name="net-dns/pdns" auto="yes" arch="*">
<unaffected range="ge"></unaffected>
<vulnerable range="lt"></vulnerable>
The PowerDNS Nameserver is an authoritative-only nameserver which uses
a flexible backend architecture.
Daniel Drown reported an error when receiving a HINFO CH query
(CVE-2008-5277). Brian J. Dowling of Simplicity Communications
discovered a previously unknown security implication of the PowerDNS
behavior to not respond to certain queries it considers malformed
<impact type="normal">
A remote attacker could send specially crafted queries to cause a
Denial of Service. The second vulnerability in itself does not pose a
security risk to PowerDNS Nameserver. However, not answering a query
for an invalid DNS record within a valid domain allows for a larger
spoofing window on third-party nameservers for domains being hosted by
PowerDNS Nameserver itself.
There is no known workaround at this time.
All PowerDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-dns/pdns-;</code>
<uri link="">CVE-2008-3337</uri>
<uri link="">CVE-2008-5277</uri>
<metadata tag="requester" timestamp="Sat, 06 Sep 2008 21:05:59 +0000">
<metadata tag="bugReady" timestamp="Sat, 06 Sep 2008 21:06:12 +0000">
<metadata tag="submitter" timestamp="Wed, 10 Sep 2008 17:38:51 +0000">