IBM DB2 UDB 9.1 before Fixpak 4 does not properly perform vector aggregation, which might allow attackers to cause a denial of service (div…

IBM DB2 UDB 9.1 before Fixpak 4 does not properly perform vector aggregation, which might allow attackers to cause a denial of service (divide-by-zero error and DBMS crash), related to an "overflow." NOTE: the vendor description of this issue is too vague to be certain that it is security-related.