<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200704-02"> <title>MIT Kerberos 5: Arbitrary remote code execution</title> <synopsis> Multiple vulnerabilities in MIT Kerberos 5 could potentially result in unauthenticated remote root code execution. </synopsis> <product type="ebuild">mit-krb5</product> <announced>2007-04-03</announced> <revised count="01">2007-04-03</revised> <bug>171889</bug> <access>remote</access> <affected> <package name="app-crypt/mit-krb5" auto="yes" arch="*"> <unaffected range="ge">1.5.2-r1</unaffected> <vulnerable range="lt">1.5.2-r1</vulnerable> </package> </affected> <background> <p> MIT Kerberos 5 is a suite of applications that implement the Kerberos network protocol. </p> </background> <description> <p> The Kerberos telnet daemon fails to properly handle usernames allowing unauthorized access to any account (CVE-2007-0956). The Kerberos administration daemon, the KDC and possibly other applications using the MIT Kerberos libraries are vulnerable to the following issues. The krb5_klog_syslog function from the kadm5 library fails to properly validate input leading to a stack overflow (CVE-2007-0957). The GSS-API library is vulnerable to a double-free attack (CVE-2007-1216). </p> </description> <impact type="high"> <p> By exploiting the telnet vulnerability a remote attacker may obtain access with root privileges. The remaining vulnerabilities may allow an authenticated remote attacker to execute arbitrary code with root privileges. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All MIT Kerberos 5 users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.5.2-r1"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0956">CVE-2007-0956</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0957">CVE-2007-0957</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1216">CVE-2007-1216</uri> </references> <metadata tag="submitter" timestamp="2007-04-02T16:29:27Z"> jaervosz </metadata> <metadata tag="bugReady" timestamp="2007-04-03T20:30:58Z"> vorlon </metadata> </glsa>