Unspecified vulnerability in the Advanced Queuing component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0.5, 10.2.0.4, and 11.1.0.6 has unknown impact and remote authenticated attack vectors related to SYS.DBMS_AQELM. NOTE: the previous information was obtained from the Oracle July 2008 CPU. Oracle has not commented on reliable researcher claims that this issue is a buffer overflow that allows attackers to cause a denial of service (database corruption) and possibly execute arbitrary code via a long argument to an unspecified procedure.
http://www.vupen.com/english/advisories/2008/2115
http://www.vupen.com/english/advisories/2008/2109/references
http://www.securitytracker.com/id?1020499
http://www.oracle.com/technetwork/topics/security/cpujul2008-090335.html
http://secunia.com/advisories/31113
http://secunia.com/advisories/31087
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=726
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00727143