Date: Sat, 19 Dec 1998 17:10:36 +0100 From: Rico Pajarola <pajarola@cybertime.ch> To: security@FreeBSD.ORG Subject: nmap crashes inetd/portmap on 2.2.6 Message-ID: <3.0.32.19981219170558.0080a8c0@www.dlc.cybertime.ch>
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portscanning with nmap results in inetd crashing/hanging on FBSD 2.2.6 which makes an excellent DoS attack. Portmap is also affected, inetd hangs initializing rpc/udp services when you HUP it, making it somewhat more complicated to recover, as you'll have to restart all rpc services (in the correct order). It is not always reproducible (sometimes you need to try several times with different flags to nmap). I couldn't crash inetd on FBSD-Current (may 28 1998) so I guess it has been fixed. Are there any known issues I missed? other os are vulnerable as well (still testing). Rico Pajarola To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the messagehelp
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