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bnc -- remotely exploitable buffer overflow in getnickuserhost

Description:

A LSS Security Advisory reports:

There is a buffer overflow vulnerability in getnickuserhost() function that is called when BNC is processing response from IRC server.

Vulnerability can be exploited if attacker tricks user to connect to his fake IRC server that will exploit this vulnerability. If the attacker has access to BNC proxy server, this vulnerability can be used to gain shell access on machine where BNC proxy server is set.

References:

Affects:

portaudit: bnc -- remotely exploitable buffer overflow in getnickuserhost

Disclaimer: The data contained on this page is derived from the VuXML document, please refer to the the original document for copyright information. The author of portaudit makes no claim of authorship or ownership of any of the information contained herein.

If you have found a vulnerability in a FreeBSD port not listed in the database, please contact the FreeBSD Security Officer. Refer to "FreeBSD Security Information" for more information.


Oliver Eikemeier <eik@FreeBSD.org>