72 lines
2.4 KiB
XML
72 lines
2.4 KiB
XML
<?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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<glsa id="200804-22">
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<title>PowerDNS Recursor: DNS Cache Poisoning</title>
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<synopsis>
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Use of insufficient randomness in PowerDNS Recursor might lead to DNS cache
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poisoning.
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</synopsis>
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<product type="ebuild">pdns-recursor</product>
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<announced>April 18, 2008</announced>
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<revised>August 21, 2008: 03</revised>
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<bug>215567</bug>
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<bug>231335</bug>
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<access>remote</access>
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<affected>
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<package name="net-dns/pdns-recursor" auto="yes" arch="*">
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<unaffected range="ge">3.1.6</unaffected>
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<vulnerable range="lt">3.1.6</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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The PowerDNS Recursor is an advanced recursing nameserver.
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</p>
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</background>
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<description>
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<p>
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Amit Klein of Trusteer reported that insufficient randomness is used to
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calculate the TRXID values and the UDP source port numbers
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(CVE-2008-1637). Thomas Biege of SUSE pointed out that a prior fix to
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resolve this issue was incomplete, as it did not always enable the
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stronger random number generator for source port selection
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(CVE-2008-3217).
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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 attacker could send malicious answers to insert arbitrary DNS
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data into the cache. These attacks would in turn help an attacker to
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perform man-in-the-middle and site impersonation attacks.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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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 PowerDNS Recursor 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/pdns-recursor-3.1.6"</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-2008-1637">CVE-2008-1637</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3217">CVE-2008-3217</uri>
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</references>
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<metadata tag="requester" timestamp="Thu, 17 Apr 2008 20:12:08 +0000">
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keytoaster
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</metadata>
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<metadata tag="submitter" timestamp="Fri, 18 Apr 2008 01:27:35 +0000">
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rbu
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</metadata>
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<metadata tag="bugReady" timestamp="Fri, 18 Apr 2008 01:27:43 +0000">
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rbu
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</metadata>
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</glsa>
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