Secunia

eliteb0y 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 within Mercury/32 SMTP Server Module (mercurys.dll) when processing arguments to the AUTH CRAM-MD5 command. This can be exploited to cause a stack-based buffer overflow via an overly long, specially-crafted argument passed to the affected command.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 4.51. Other versions may also be affected.

Solution
Update to version 4.52.
Further details available in Customer Area

Provided and/or discovered by
eliteb0y

Changelog
Further details available in Customer Area

Original Advisory
Mercury:
http://www.pmail.com/m32_451.htm

http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065357.html

Deep Links
Links available in Customer Area