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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.1021
      IBM Tivoli Directory Server BER-encoded LDAP denial of service
                             10 November 2010

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Tivoli Directory Server
Publisher:         ISS
Operating System:  Windows
                   AIX
                   Red Hat
                   SUSE
                   Solaris
                   HP-UX
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-4216  

Original Bulletin: 
   http://xforce.iss.net/xforce/xfdb/62977

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IBM Tivoli Directory Server BER-encoded LDAP denial of service
ibm-tds-ber-ldap-dos (62977) 	
The risk level is classified as Low

Description:

IBM Tivoli Directory Server is vulnerable to a denial of service, caused by an 
error when handling BER-encoded LDAP requests. By sending a specially-crafted 
request, a remote attacker could exploit this vulnerability to cause the server 
to crash.

*CVSS:
  Base Score: 			5
  Access Vector: 		Network
  Access Complexity: 		Low
  Authentication: 		None
  Confidentiality Impact: 	None
  Integrity Impact: 		None
  Availability Impact: 		Partial
 
  Temporal Score: 		3.7
  Exploitability: 		Unproven
  Remediation Level: 		Official-Fix
  Report Confidence: 		Confirmed

Consequences:

Denial of Service

Remedy:

Refer to IBM APAR IO13306 for patch, upgrade or suggested workaround 
information. See References.

References:

    * IBM APAR IO13306: Bad BER request could potentially crash Tivoli 
      Directory Server.
    * BID-44604: IBM Tivoli Directory Server Multiple Denial of Service 
      Vulnerabilities
    * SA42116: IBM Tivoli Directory Server BER Denial of Service Vulnerability
    * VUPEN/ADV-2010-2863: IBM Tivoli Directory Server LDAP and BER Denial of 
      Service Vulnerabilities

Platforms Affected:

    * IBM Tivoli Directory Server 6.0.0.8

Reported:

Oct 29, 2010

The information within this database may change without notice. Use of this 
information constitutes acceptance for use in an AS IS condition. There are NO 
warranties, implied or otherwise, with regard to this information or its use. 
Any use of this information is at the user's risk. In no event shall the 
author/distributor (IBM Internet Security Systems X-Force) be held liable for 
any damages whatsoever arising out of or in connection with the use or spread 
of this information.

For corrections or additions please email iss-webmaster

* According to the Forum of Incident Response and Security Teams (FIRST), the 
Common Vulnerability Scoring System (CVSS) is an "industry open standard 
designed to convey vulnerability severity and help to determine urgency and 
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY 
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT 
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

The information within this database may change without notice. Use of this 
information constitutes acceptance for use in an AS IS condition. There are 
NO warranties, implied or otherwise, with regard to this information or its 
use. Any use of this information is at the user's risk. In no event shall IBM 
be held liable for any damages whatsoever arising out of or in connection with 
the use or spread of this information.

About IBM Internet Security Systems
IBM Internet Security Systems is a trusted security advisor to thousands of 
the world's leading businesses and governments, helping to provide pre-emptive 
protection for networks, desktops and servers. The IBM Proventia? integrated 
security platform is designed to automatically protect against both known and 
unknown threats, helping to keep networks up and running and shield customers 
from online attacks before they impact business assets. IBM Internet Security 
Systems products and services are based on the proactive security intelligence 
of its X-Force? research and development team ? an unequivocal world authority 
in vulnerability and threat research. The IBM Internet Security Systems product 
line is also complemented by comprehensive Managed Security Services and 
Professional Security Services. For more information, visit the IBM Internet 
Security Systems Web site at www.iss.net or call 800-776-2362.

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