A vulnerability has been reported in IBM Informix Dynamic Server, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the logging function in oninit.exe and can be exploited to cause a stack-based buffer overflow by sending a specially crafted request to TCP ports 9088 or 1526.
The vulnerability is reported in IBM Informix Dynamic Server versions prior to 11.50.xC1 and 11.10.xC2W2.
Solution: Update to version 11.50.xC1 or 11.10.xC2W2.
Provided and/or discovered by: An anonymous person via ZDI.
Original Advisory: ZDI:
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Subject: IBM Informix Dynamic Server "oninit.exe" Buffer Overflow Vulnerability
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