CVE-1999-1053
guestbook.pl cleanses user-inserted SSI commands by removing text between "!--" and "--" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache 1.3.9 and possibly other versions, since Apache allows other closing sequences besides "--".
CVE-1999-0678
A default configuration of Apache on Debian GNU/Linux sets the ServerRoot to /usr/doc, which allows remote users to read documentation files for the entire server.
CVE-1999-0532
A DNS server allows zone transfers.
CVE-1999-0524
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
CVE-1999-0517
An SNMP community name is the default (e.g. public), null, or missing.
CVE-1999-0016
Land IP denial of service.
CVE-1999-0001
ip_input.c in BSD-derived TCP/IP implementations allows remote attackers to cause a denial of service (crash or hang) via crafted packets.