Secunia Research has discovered a vulnerability in Danske Bank Danske e-Sec Control Module ActiveX control, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error in DanskeSikker.ocx within an error logging function. This can be exploited to cause a stack-based buffer overflow by passing overly long input to certain methods when the ActiveX control has been initialised in a specific manner.
Successful exploitation allows execution of arbitrary code when e.g. visiting a malicious web site.
The vulnerability is confirmed in version 220.127.116.11. Other versions may also be affected.
Solution: Microsoft has set the kill-bit via MS10-034.
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Subject: Danske Bank e-Sec Control Module Error Logging Buffer Overflow
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