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authorPatrick McHardy <kaber@trash.net>2007-06-05 14:14:22 +0200
committerChris Wright <chrisw@sous-sol.org>2007-06-07 14:25:32 -0700
commit8c640bd0c68201dd0d71b78a07bb224973580ad3 (patch)
tree39b83ebeedd97a273f342c1ff5601d707e01215e /Makefile
parentc23e7e4c94647c2c47d2c835b21cc7d745f62d05 (diff)
[PATCH] NETFILTER: {ip, nf}_conntrack_sctp: fix remotely triggerable NULL ptr dereference (CVE-2007-2876)
When creating a new connection by sending an unknown chunk type, we don't transition to a valid state, causing a NULL pointer dereference in sctp_packet when accessing sctp_timeouts[SCTP_CONNTRACK_NONE]. Fix by don't creating new conntrack entry if initial state is invalid. Noticed by Vilmos Nebehaj <vilmos.nebehaj@ramsys.hu> CC: Kiran Kumar Immidi <immidi_kiran@yahoo.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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