<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200605-10"> <title>pdnsd: Denial of Service and potential arbitrary code execution</title> <synopsis> pdnsd is vulnerable to a buffer overflow that may result in arbitrary code execution. </synopsis> <product type="ebuild">pdnsd</product> <announced>2006-05-10</announced> <revised count="01">2006-05-10</revised> <bug>131341</bug> <access>remote</access> <affected> <package name="net-dns/pdnsd" auto="yes" arch="*"> <unaffected range="ge">1.2.4</unaffected> <vulnerable range="lt">1.2.4</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> The pdnsd team has discovered an unspecified buffer overflow vulnerability. The PROTOS DNS Test Suite, by the Oulu University Secure Programming Group (OUSPG), has also revealed a memory leak error within the handling of the QTYPE and QCLASS DNS queries, leading to consumption of large amounts of memory. </p> </description> <impact type="high"> <p> An attacker can craft malicious DNS queries leading to a Denial of Service, and potentially the execution of arbitrary code. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All pdnsd users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdnsd-1.2.4-r1"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2076">CVE-2006-2076</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2077">CVE-2006-2077</uri> </references> <metadata tag="bugReady" timestamp="2006-05-06T16:17:08Z"> koon </metadata> <metadata tag="submitter" timestamp="2006-05-07T10:55:02Z"> falco </metadata> </glsa>