TITLE:
Kinesphere eXchange POP3 "RCPT TO" Buffer Overflow

SECUNIA ADVISORY ID:
SA18687

VERIFY ADVISORY:
http://secunia.com/advisories/18687/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
Kinesphere eXchange POP3 5.x
http://secunia.com/product/3411/

DESCRIPTION:
securma massine has reported a vulnerability in Kinesphere eXchange
POP3, which can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to a boundary error within the
handling of SMTP connections. This can be exploited to cause a buffer
overflow by passing an overly long string (about 4112 bytes) in a
"RCPT TO:" header.

The vulnerability has been reported in version 5.0 build 050203.
Prior versions may also be affected.

SOLUTION:
The vulnerability has reportedly been fixed in version 5.0 build
060125.
http://www.exchangepop3.com/download.html

PROVIDED AND/OR DISCOVERED BY:
securma massine, MorX Security Research Team.

ORIGINAL ADVISORY:
http://www.morx.org/adv.txt

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