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Valid Node Checking For Registration (VNCR) (Doc ID 1600630.1)

Last updated on MARCH 31, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2 to 19]
Oracle Net Services - Version to [Release 11.2 to 19]
Oracle E-Business Suite Performance - Version 12.1.1 to 12.1.1 [Release 12.1]
Information in this document applies to any platform.
Describes the new listener registration security feature known as valid node checking.
VNCR in and newer versions of the listener can mitigate the threat known as: alert-cve-2012-1675


 VNCR is a new feature introduced in Oracle Net and 12c which allows instance registrations to only come from known servers.


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