Secunia

mu-b has discovered a vulnerability in Mercury Mail Transport System, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error when processing IMAP continuation data from the client. This can be exploited to cause a stack-based buffer overflow via a specially crafted series of commands and data sent to the IMAP service.

This vulnerability may be related to:
SA22857

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in version 4.01b and confirmed in version 4.01a. Other versions may also be affected.

Solution
Restrict access to the IMAP service.

Provided and/or discovered by
mu-b

Original Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2007-March/052802.html

Other references
Further details available in Customer Area

Deep Links
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