Integer overflow in librpc.dll in portmap.exe (aka the ISM Portmapper service) in ISM before 2.20.TC1.117 in IBM Informix Dynamic Server (IDS) 7.x before 7.31.xD11, 9.x before 9.40.xC10, 10.00 before 10.00.xC8, and 11.10 before 11.10.xC2 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted parameter size, aka idsdb00146931, idsdb00146930, idsdb00146929, and idsdb00138308.

Stack-based buffer overflow in IBM Informix Dynamic Server (IDS) 7.x through 7.31, 9.x through 9.40, 10.00 before 10.00.xC10, 11.10 before 11.10.xC3, and 11.50 before 11.50.xC3 allows remote authenticated users to execute arbitrary code via long DBINFO keyword arguments in a SQL statement, aka idsdb00165017, idsdb00165019, idsdb00165021, idsdb00165022, and idsdb00165023.

Multiple buffer overflows in oninit.exe in IBM Informix Dynamic Server (IDS) 7.x through 11.x allow (1) remote attackers to execute arbitrary code via a long password and (2) remote authenticated users to execute arbitrary code via a long DBPATH value.

Unspecified vulnerability in IBM Informix Dynamic Server (IDS) 7.x through 11.x allows remote attackers to gain privileges via a malformed connection request packet.

IBM Informix Dynamic Server (IDS) before 9.40.xC7 and 10.00 before 10.00.xC3 allows allows remote authenticated users to execute arbitrary commands via the (1) "SET DEBUG FILE" SQL command, and the (2) start_onpload and (3) dbexp functions.

IBM Informix Dynamic Server (IDS) before 9.40.xC7 and 10.00 before 10.00.xC3 does not use database creation permissions, which allows remote authenticated users to create arbitrary databases.