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US-CERT Technical Cyber Security Alert TA08-079B -- MIT Kerberos Updates for Multiple Vulnerabilities



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        National Cyber Alert System
   
  Technical Cyber Security Alert TA08-079B


MIT Kerberos Updates for Multiple Vulnerabilities

   Original release date: March 19, 2008
   Last revised: --
   Source: US-CERT

Systems Affected

     * MIT Kerberos

Overview

   The  MIT  Kerberos  implementation  contains  several vulnerabilities.
   Exploitation   of   these   vulnerabilities   could  allow  a  remote,
   unauthenticated attacker to execute arbitrary code, compromise the key
   database or cause a denial of service on a vulnerable system.

I. Description

   The  MIT  Kerberos  Development  Team  has  released MIT krb5 Security
   Advisory  2008-002  to address vulnerabilities in multiple versions of
   MIT  Kerberos.  More  information  about  these vulnerabilities can be
   found in VU#895609 and VU#374121.

II. Impact

   Potential  consequences include arbitrary code execution, key database
   compromise, and denial of service.

III. Solution

Install updates from your vendor

   Check  with your vendors for patches or updates. For information about
   a  vendor,  please  see  the systems affected section in vulnerability
   notes  VU#895609  and  VU#374121  or  contact  your  vendor  directly.
   Administrators  who  compile  MIT Kerberos from source should refer to
   MIT Security Advisory 2008-002 for more information.

IV. References

 * US-CERT Vulnerability Note VU#895609 -
   <http://www.kb.cert.org/vuls/id/895609>
     
 * US-CERT Vulnerability Note VU#374121 -
   <http://www.kb.cert.org/vuls/id/374121>
     
 * MIT krb5 Security Advisory 2008-002 -
   <http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-002.txt2>

 _________________________________________________________________

  The most recent version of this document can be found at:

    <http://www.us-cert.gov/cas/techalerts/TA08-079B.html>
 _________________________________________________________________

  Feedback can be directed to US-CERT Technical Staff. Please send
  email to <cert@xxxxxxxx> with "TA08-079B Feedback VU#895609" in the
  subject.
 _________________________________________________________________

  For instructions on subscribing to or unsubscribing from this
  mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
 _________________________________________________________________

  Produced 2008 by US-CERT, a government organization.

  Terms of use:

    <http://www.us-cert.gov/legal.html>
 ____________________________________________________________________

   Revision History

   March 19, 2008: Initial release
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