65 lines
2 KiB
XML
65 lines
2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200801-16">
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<title>MaraDNS: CNAME Denial of Service</title>
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<synopsis>
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MaraDNS is prone to a Denial of Service vulnerability impacting CNAME
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resolution.
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</synopsis>
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<product type="ebuild">maradns</product>
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<announced>January 29, 2008</announced>
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<revised>January 29, 2008: 01</revised>
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<bug>204351</bug>
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<access>remote</access>
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<affected>
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<package name="net-dns/maradns" auto="yes" arch="*">
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<unaffected range="ge">1.2.12.08</unaffected>
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<vulnerable range="lt">1.2.12.08</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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MaraDNS is a package that implements the Domain Name Service (DNS) with
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resolver and caching ability.
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</p>
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</background>
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<description>
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<p>
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Michael Krieger reported that a specially crafted DNS could prevent an
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authoritative canonical name (CNAME) record from being resolved because
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of an "improper rotation of resource records".
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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 specially crafted DNS packets to a
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vulnerable server, making it unable to resolve CNAME records.
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</p>
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</impact>
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<workaround>
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<p>
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Add "max_ar_chain = 2" to the "marac" configuration file.
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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 MaraDNS 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/maradns-1.2.12.09"</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-2008-0061">CVE-2008-0061</uri>
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</references>
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<metadata tag="requester" timestamp="Sun, 27 Jan 2008 19:19:02 +0000">
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rbu
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 28 Jan 2008 17:41:20 +0000">
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falco
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 28 Jan 2008 18:03:45 +0000">
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falco
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</metadata>
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</glsa>
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