Unspecified vulnerability in the Network Authentication component in Oracle Database 10.1.0.5 and 10.2.0.4 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors. NOTE: the previous information was obtained from the October 2009 CPU. Oracle has not commented on claims from an independent researcher that this is related to improper validation of the AUTH_SESSKEY parameter length that leads to arbitrary code execution.
http://www.us-cert.gov/cas/techalerts/TA09-294A.html
http://www.securitytracker.com/id?1023057
http://www.securityfocus.com/bid/36747
http://www.securityfocus.com/archive/1/507598/100/0/threaded
http://www.oracle.com/technetwork/topics/security/cpuoct2009-096303.html