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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200704-02">
<title>MIT Kerberos 5: Arbitrary remote code execution</title>
Multiple vulnerabilities in MIT Kerberos 5 could potentially result in
unauthenticated remote root code execution.
<product type="ebuild">mit-krb5</product>
<announced>April 03, 2007</announced>
<revised>April 03, 2007: 01</revised>
<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>
MIT Kerberos 5 is a suite of applications that implement the Kerberos
network protocol.
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).
<impact type="high">
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
There is no known workaround at this time.
All MIT Kerberos 5 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-crypt/mit-krb5-1.5.2-r1&quot;</code>
<uri link="">CVE-2007-0956</uri>
<uri link="">CVE-2007-0957</uri>
<uri link="">CVE-2007-1216</uri>
<metadata tag="submitter" timestamp="Mon, 02 Apr 2007 16:29:27 +0000">
<metadata tag="bugReady" timestamp="Tue, 03 Apr 2007 20:30:58 +0000">