Hi Muthamma,
If you read the CVE and follow the link to the related OpenLDAP ITS, you will discover that the reported issue was marked invalid. I.e., what was reported is not a security vulnerability, or will it ever be fixed.
Hope this helps!
Regards, Quanah
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Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: http://www.symas.com