Posted by ErmanArslansOracleBlog on Sep 28, 2018; 12:56pm URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/TNS-Poisoning-Atack-tp6790p6791.html
Hi,
You mean CVE-2012-1675, a vulnerability in the TNS listener which has been recently disclosed as "TNS Listener Poison Attack" affecting the Oracle Database Server.