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authorRepository QA checks <repo-qa-checks@gentoo.org>2016-04-14 08:02:22 +0000
committerRepository QA checks <repo-qa-checks@gentoo.org>2016-04-14 08:02:22 +0000
commit670f14532cf81a4e02d989bcb1254e1e48bcb4e4 (patch)
tree68ef72d9e802ec198860f87b94402f4ca3aae287 /metadata/glsa/glsa-200901-03.xml
parentAdd 'metadata/dtd/' from commit 'f8325042cda078a7fa29be8dcb9a092219332112' (diff)
parentAdd GLSA 201604-03 - Fix (diff)
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git-subtree-dir: metadata/glsa git-subtree-mainline: 3149e13ab601ad3a8f925656fd88567d2626de47 git-subtree-split: aacff3c55fb52643f95332002ecdb7d439b8e4df
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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+
+<glsa id="200901-03">
+ <title>pdnsd: Denial of Service and cache poisoning</title>
+ <synopsis>
+ Two errors in pdnsd allow for Denial of Service and cache poisoning.
+ </synopsis>
+ <product type="ebuild">pdnsd</product>
+ <announced>January 11, 2009</announced>
+ <revised>January 11, 2009: 01</revised>
+ <bug>231285</bug>
+ <access>remote</access>
+ <affected>
+ <package name="net-dns/pdnsd" auto="yes" arch="*">
+ <unaffected range="ge">1.2.7</unaffected>
+ <vulnerable range="lt">1.2.7</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ pdnsd is a proxy DNS server with permanent caching that is designed to
+ cope with unreachable DNS servers.
+ </p>
+ </background>
+ <description>
+ <p>
+ Two issues have been reported in pdnsd:
+ </p>
+ <ul>
+ <li>
+ The p_exec_query() function in src/dns_query.c does not properly handle
+ many entries in the answer section of a DNS reply, related to a
+ "dangling pointer bug" (CVE-2008-4194).
+ </li>
+ <li>
+ The default value for query_port_start was set to 0, disabling UDP
+ source port randomization for outgoing queries (CVE-2008-1447).
+ </li>
+ </ul>
+ </description>
+ <impact type="normal">
+ <p>
+ An attacker could exploit the second weakness to poison the cache of
+ pdnsd and thus spoof DNS traffic, which could e.g. lead to the
+ redirection of web or mail traffic to malicious sites. The first issue
+ can be exploited by enticing pdnsd to send a query to a malicious DNS
+ server, or using the port randomization weakness, and might lead to a
+ Denial of Service.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ Port randomization can be enabled by setting the "query_port_start"
+ option to 1024 which would resolve the CVE-2008-1447 issue.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All pdnsd users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge --sync
+ # emerge --ask --oneshot --verbose &quot;&gt;=net-dns/pdnsd-1.2.7&quot;</code>
+ </resolution>
+ <references>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447">CVE-2008-1447</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4194">CVE-2008-4194</uri>
+ </references>
+ <metadata tag="requester" timestamp="Wed, 26 Nov 2008 18:15:10 +0000">
+ rbu
+ </metadata>
+ <metadata tag="submitter" timestamp="Wed, 26 Nov 2008 23:10:06 +0000">
+ rbu
+ </metadata>
+ <metadata tag="bugReady" timestamp="Wed, 26 Nov 2008 23:10:19 +0000">
+ rbu
+ </metadata>
+</glsa>