Some vulnerabilities have been reported in IBM Informix Dynamic Server, which can be exploited by malicious people to compromise a vulnerable system.

1) Multiple errors in the RPC library (librpc.dll) can be exploited to cause buffer overflows via specially crafted RPC packets sent to TCP port 36890.

2) A signedness error in the RPC library (librpc.dll) can be exploited to cause a stack-based buffer overflow via a specially crafted RPC packet sent to to TCP port 36890.

Successful exploitation of the vulnerabilities allows execution of arbitrary code.

The vulnerabilities are reported in versions prior to IDS 10.00.TC9 and IDS 11.10.TC3.

Solution
Update to version IDS 10.00.TC10 or IDS 11.10.TC3 4.

Provided and/or discovered by
Sebastian Apelt, reported via ZDI

Changelog
Further details available in Customer Area

Original Advisory
IBM:
http://www.ibm.com/support/docview.wss?uid=swg1IC55329
http://www.ibm.com/support/docview.wss?uid=swg1IC55330

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-10-022/
http://www.zerodayinitiative.com/advisories/ZDI-10-023/

Deep Links
Links available in Customer Area