Date: 30 July 2010
References: ESB-2010.0661 ESB-2010.0634 ESB-2010.0677 ESB-2010.0773 ESB-2010.1039.2 ESB-2011.0010.4
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AUSCERT Security Bulletin
30 July 2010
AusCERT Security Bulletin Summary
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2010-0211 CVE-2010-0212
Member content until: Thursday, August 19 2010
Revision History: July 30 2010: Added CVEs
July 20 2010: Initial Release
Two denial of service vulnerabilities were discovered in
'out-of-the-box' standard configurations of OpenLDAP. One of these
flaws could lead to arbitrary code execution. 
A maliciously crafted destination rdn string can cause OpenLDAP to
crash while processing a 'modrdn' call.
The crash can occur with segfault or at a null pointer dereference.
The null pointer dereference could be used to execute arbitrary code
which could lead to a system compromise.
Authentication is not required to exploit these flaws. 
It is recommended to update to version 2.4.23
 Two OpenLDAP preauth vulnerabilities
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in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
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takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
Australian Computer Emergency Response Team
The University of Queensland
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On call after hours for member emergencies only.
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