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authorAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
committerAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
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Import existing advisories
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+<?xml version="1.0" encoding="utf-8"?>
+<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
+<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+
+<glsa id="200809-02">
+ <title>dnsmasq: Denial of Service and DNS spoofing</title>
+ <synopsis>
+ Two vulnerabilities in dnsmasq might allow for a Denial of Service or
+ spoofing of DNS replies.
+ </synopsis>
+ <product type="ebuild">dnsmasq</product>
+ <announced>September 04, 2008</announced>
+ <revised>September 04, 2008: 01</revised>
+ <bug>231282</bug>
+ <bug>232523</bug>
+ <access>remote</access>
+ <affected>
+ <package name="net-dns/dnsmasq" auto="yes" arch="*">
+ <unaffected range="ge">2.45</unaffected>
+ <vulnerable range="lt">2.45</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP
+ server.
+ </p>
+ </background>
+ <description>
+ <ul>
+ <li>
+ Dan Kaminsky of IOActive reported that dnsmasq does not randomize UDP
+ source ports when forwarding DNS queries to a recursing DNS server
+ (CVE-2008-1447).
+ </li>
+ <li>
+ Carlos Carvalho reported that dnsmasq in the 2.43 version does not
+ properly handle clients sending inform or renewal queries for unknown
+ DHCP leases, leading to a crash (CVE-2008-3350).
+ </li>
+ </ul>
+ </description>
+ <impact type="normal">
+ <p>
+ A remote attacker could send spoofed DNS response traffic to dnsmasq,
+ possibly involving generating queries via multiple vectors, and spoof
+ DNS replies, which could e.g. lead to the redirection of web or mail
+ traffic to malicious sites. Furthermore, an attacker could generate
+ invalid DHCP traffic and cause a Denial of Service.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ There is no known workaround at this time.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All dnsmasq users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge --sync
+ # emerge --ask --oneshot --verbose &quot;&gt;=net-dns/dnsmasq-2.45&quot;</code>
+ </resolution>
+ <references>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3350">CVE-2008-3350</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447">CVE-2008-1447</uri>
+ </references>
+ <metadata tag="requester" timestamp="Sun, 13 Jul 2008 19:25:11 +0000">
+ p-y
+ </metadata>
+ <metadata tag="submitter" timestamp="Tue, 19 Aug 2008 23:52:40 +0000">
+ rbu
+ </metadata>
+ <metadata tag="bugReady" timestamp="Tue, 19 Aug 2008 23:52:59 +0000">
+ rbu
+ </metadata>
+</glsa>