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.
Buffer overflow in IBM Informix Dynamic Server (IDS) 9.40.TC5 through 9.40.xC7 and 10.00.TC1 through 10.00.xC3 allows attackers to execute arbitrary code via the SQLIDEBUG environment variable (envariable).
IBM Informix Dynamic Server (IDS) before 9.40.xC3 allows local users to (1) create or overwrite files via the /001 log file to onedcu or (2) read arbitrary files via a symlink attack on a file in /tmp to onshowaudit.
Format string vulnerability in IBM Informix Dynamic Server (IDS) before 9.40.xC3 allows local users to execute arbitrary code via a modified INFORMIXDIR environment variable that points to a file with format string specifiers in the filename.
Buffer overflow in IBM Informix Dynamic Server (IDS) 9.40.xC1 and 9.40.xC2 allows local users to execute arbitrary code via a long GL_PATH environment variable.
Stack-based buffer overflow in ontape for IBM Informix Dynamic Server (IDS) 9.40.xC3 and earlier allows local users, with DSA privileges, to execute arbitrary code via a long ONCONFIG environment variable.