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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200903-14">
<title>BIND: Incorrect signature verification</title>
<synopsis>
Incomplete verification of RSA and DSA certificates might lead to spoofed
records authenticated using DNSSEC.
</synopsis>
<product type="ebuild">bind</product>
<announced>March 09, 2009</announced>
<revised>March 09, 2009: 01</revised>
<bug>254134</bug>
<bug>257949</bug>
<access>remote</access>
<affected>
<package name="net-dns/bind" auto="yes" arch="*">
<unaffected range="ge">9.4.3_p1</unaffected>
<vulnerable range="lt">9.4.3_p1</vulnerable>
</package>
</affected>
<background>
<p>
ISC BIND is the Internet Systems Consortium implementation of the
Domain Name System (DNS) protocol.
</p>
</background>
<description>
<p>
BIND does not properly check the return value from the OpenSSL
functions to verify DSA (CVE-2009-0025) and RSA (CVE-2009-0265)
certificates.
</p>
</description>
<impact type="normal">
<p>
A remote attacker could bypass validation of the certificate chain to
spoof DNSSEC-authenticated records.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All BIND users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-dns/bind-9.4.3_p1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0025">CVE-2009-0025</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0265">CVE-2009-0265</uri>
</references>
<metadata tag="requester" timestamp="Sun, 11 Jan 2009 17:55:00 +0000">
p-y
</metadata>
<metadata tag="submitter" timestamp="Mon, 09 Mar 2009 10:41:33 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Mon, 09 Mar 2009 10:41:40 +0000">
rbu
</metadata>
</glsa>