Oracle Zero Day Vulnerability Still Not Patched after April’s patch release with had 88 patches. The vulnerability allows an attacker to perform a man in the middle attack and capture information exchanged between clients and databases. The vulnerability was reported in 2008 and has believed to been around since 1999 when the TNS Listener feature was added to Oracles product line. Oracle has workarounds for the zero-day flaw which was found in there database server products. Oracle has gone as far to release a security alert: Oracle Security Alert for CVE-2012-1675 http://www.oracle.com/technetwork/topics/security/alert-cve-2012-1675-1608180.html The vulnerability is in the TNS listener which has been recently disclosed as “TNS Listener Poison Attack” affecting the Oracle Database Server. The products affected are Oracle Database 11g Release 2, versions 184.108.40.206, 220.127.116.11, Oracle Database 11g Release 1, version 18.104.22.168, Oracle Database 10g Release 2, versions 10.2.0.3, 10.2.0.4, 10.2.0.5, Fusion Middleware, Enterprise Manager and E-Business Suite. Oracle has released work arounds which can be found at My Oracle Support Note 1340831.1 and My Oracle Support Note 1453883.1.