void has discovered a vulnerability in Mercury Mail Transport System, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the IMAPD module when processing the IMAP SEARCH command. This can be exploited to cause a stack-based buffer overflow via an overly long argument (over 60 bytes) passed to the affected command.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 4.52. Other versions may also be affected.
Solution: Restrict access to trusted users only.
Provided and/or discovered by: void, ph4nt0m.org
Original Advisory: http://milw0rm.com/exploits/4429
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Subject: Mercury Mail Transport System IMAPD SEARCH Buffer Overflow
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