glsa-200707-11.xml


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<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200707-11">
  <title>MIT Kerberos 5: Arbitrary remote code execution</title>
  <synopsis>
    Multiple vulnerabilities in MIT Kerberos 5 could potentially result in
    remote code execution with root privileges by unauthenticated users.
  </synopsis>
  <product type="ebuild">mit-krb5</product>
  <announced>July 25, 2007</announced>
  <revised>July 25, 2007: 01</revised>
  <bug>183338</bug>
  <access>remote</access>
  <affected>
    <package name="app-crypt/mit-krb5" auto="yes" arch="*">
      <unaffected range="ge">1.5.2-r3</unaffected>
      <vulnerable range="lt">1.5.2-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    MIT Kerberos 5 is a suite of applications that implement the Kerberos
    network protocol.
    </p>
  </background>
  <description>
    <p>
    kadmind is affected by multiple vulnerabilities in the RPC library
    shipped with MIT Kerberos 5. It fails to properly handle zero-length
    RPC credentials (CVE-2007-2442) and the RPC library can write past the
    end of the stack buffer (CVE-2007-2443). Furthermore kadmind fails to
    do proper bounds checking (CVE-2007-2798).
    </p>
  </description>
  <impact type="high">
    <p>
    A remote unauthenticated attacker could exploit these vulnerabilities
    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-r3&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2442">CVE-2007-2442</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2443">CVE-2007-2443</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2798">CVE-2007-2798</uri>
  </references>
  <metadata tag="requester" timestamp="Sun, 15 Jul 2007 07:39:18 +0000">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 16 Jul 2007 20:11:47 +0000">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="Tue, 17 Jul 2007 17:56:29 +0000">
    jaervosz
  </metadata>
</glsa>