<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200604-09"> <title>Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service</title> <synopsis> Cyrus-SASL contains a vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service. </synopsis> <product type="ebuild">cyrus-sasl</product> <announced>2006-04-21</announced> <revised count="01">2006-04-21</revised> <bug>129523</bug> <access>remote</access> <affected> <package name="dev-libs/cyrus-sasl" auto="yes" arch="*"> <unaffected range="ge">2.1.21-r2</unaffected> <vulnerable range="lt">2.1.21-r2</vulnerable> </package> </affected> <background> <p> Cyrus-SASL is an implementation of the Simple Authentication and Security Layer. </p> </background> <description> <p> Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service. </p> </description> <impact type="normal"> <p> An attacker could possibly exploit this vulnerability by sending specially crafted data stream to the Cyrus-SASL server, resulting in a Denial of Service even if the attacker is not able to authenticate. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All Cyrus-SASL users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.21-r2"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1721">CVE-2006-1721</uri> </references> <metadata tag="requester" timestamp="2006-04-15T12:54:10Z"> koon </metadata> <metadata tag="bugReady" timestamp="2006-04-17T16:43:15Z"> koon </metadata> <metadata tag="submitter" timestamp="2006-04-20T16:06:22Z"> jaervosz </metadata> </glsa>