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Date: Wed, 12 Dec 2012 11:19:02 -0500 (EST)
From: Jan Lieskovsky <jlieskov@...hat.com>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Due to Nagios (core) 3.4.3 history.cgi crash
(fulldisclosure/2012/Dec/107 post)
Hello Kurt, Steve, vendors,
based on:
[1] http://seclists.org/fulldisclosure/2012/Dec/107
we have investigated the situation for potential security
implications and it looks on distributions, with FORTIFY_SOURCE
protection enabled, this problem would not be a security flaw
(the history.cgi plug-in truly crashes, but main Nagios daemon
stays alive and the overflow is detected / in httpd error log:
*** buffer overflow detected ***: /usr/lib64/nagios/cgi-bin/history.cgi terminated
)
So on distributions with F_S enabled the only impact would be
'nagios' executable crash, but since it's just 'history.cgi' plug-in
which crashes, DoS can't be reached here either.
Based on the above, we would not consider this to be a security flaw,
but mentioning here for case nagios is shipped without F_S protection
somewhere (in that case it might be more interesting from security point
of view and might qualify for a CVE id).
Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team
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