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<?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>April 03, 2007</announced>
<revised>April 03, 2007: 01</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 &quot;&gt;=app-crypt/mit-krb5-1.5.2-r1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0956">CVE-2007-0956</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0957">CVE-2007-0957</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1216">CVE-2007-1216</uri>
</references>
<metadata tag="submitter" timestamp="Mon, 02 Apr 2007 16:29:27 +0000">
jaervosz
</metadata>
<metadata tag="bugReady" timestamp="Tue, 03 Apr 2007 20:30:58 +0000">
vorlon
</metadata>
</glsa>