67 lines
2.1 KiB
XML
67 lines
2.1 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="200611-13">
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<title>Avahi: "netlink" message vulnerability</title>
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<synopsis>
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Avahi fails to verify the origin of netlink messages, which could allow
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local users to spoof network changes.
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</synopsis>
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<product type="ebuild">avahi</product>
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<announced>November 20, 2006</announced>
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<revised>November 20, 2006: 01</revised>
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<bug>154322</bug>
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<access>local</access>
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<affected>
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<package name="net-dns/avahi" auto="yes" arch="*">
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<unaffected range="ge">0.6.15</unaffected>
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<vulnerable range="lt">0.6.15</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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Avahi is a system that facilitates service discovery on a local
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network.
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</p>
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</background>
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<description>
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<p>
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Avahi does not check that the netlink messages come from the kernel
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instead of a user-space process.
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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 local attacker could exploit this vulnerability by crafting malicious
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netlink messages and trick Avahi to react to fake network changes. This
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could lead users to connect to untrusted services without knowing.
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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 Avahi 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/avahi-0.6.15"</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-2006-5461">CVE-2006-5461</uri>
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</references>
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<metadata tag="requester" timestamp="Thu, 16 Nov 2006 11:46:25 +0000">
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vorlon
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</metadata>
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<metadata tag="bugReady" timestamp="Thu, 16 Nov 2006 11:47:51 +0000">
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vorlon
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 20 Nov 2006 08:40:32 +0000">
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jaervosz
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</metadata>
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</glsa>
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