ircd-hybrid: Denial of service vulnerability in hostmask.c:try_parse_v4_netmask()

Mr. Bob Nomnomnom from Torland reported a denial of service security
vulnerability in ircd-hybrid. Function hostmask.c:try_parse_v4_netmask() is
using strtoul to parse masks. Documentation says strtoul can parse "-number" as
well.

Fixed in commit: 
http://svn.ircd-hybrid.org:8000/viewcvs.cgi/ircd-hybrid/trunk/src/hostmask.c?r1=1786&r2=1785&pathrev=1786
Fixed in: ircd-hybrid 8.0.6

--
Henri Salo

henri@nerv.fi

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