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>> OpenLDAP "bdb_modrdn()" NOOP Control Denial of Service Vulnerability

Title : OpenLDAP "bdb_modrdn()" NOOP Control Denial of Service Vulnerability
VUPEN ID : VUPEN/ADV-2008-0536
CVE ID : CVE-2008-0658
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-02-13


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in OpenLDAP, which could be exploited by attackers to cause a denial of service. This issue is caused by an error in the "bdb_modrdn()" [slapd/back-bdb/modrdn.c] function when using modrdn operation with a NOOP control, which could be exploited by attackers to crash a vulnerable application, creating a denial of service condition.

Affected Products

OpenLDAP versions 2.3.x

Solution

A fix is available via CVS :
http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-bdb/modrdn.c.diff?r1=1.197&r2=1.198&f=h

References

http://www.vupen.com/english/advisories/2008/0536
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=5358

Credits

Vulnerability reported by Ralf Haferkamp.

ChangeLog

2008-02-13 : Initial release

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