IBM DB2 8 before FP17, 9.1 before FP5, and 9.5 before FP2 provides an INSTALL_JAR (aka sqlj.install_jar) procedure, which allows remote authenticated users to create or overwrite arbitrary files via unspecified calls.
ftp://ftp.software.ibm.com/ps/products/db2/fixes/english-us/aparlist/db2_v82/APARLIST.TXT
osvdb.org/48147
secunia.com/advisories/31787
www-01.ibm.com/support/docview.wss?uid=swg1IZ21983
www-01.ibm.com/support/docview.wss?uid=swg1IZ22142
www-01.ibm.com/support/docview.wss?uid=swg1IZ22143
www-01.ibm.com/support/docview.wss?uid=swg21318189
www.securityfocus.com/bid/35409
exchange.xforce.ibmcloud.com/vulnerabilities/51105