Unspecified vulnerability in the Network Layer component in Oracle Database Server 9.2.0.8, 10.1.0.5, 10.2.0.4, 11.1.0.7, and 11.2.0.1, when running on Windows, allows remote attackers to affect availability via unknown vectors.
http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html