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| author | Patrick McHardy <kaber@trash.net> | 2007-07-10 23:24:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-07-10 23:24:52 -0700 |
| commit | 99d24edeb6abc6ca3a0d0fbdb83c664c04403c8c (patch) | |
| tree | 1ddcd854dd106878c4e7fcc55147131a137d4aca /net/unix/garbage.c | |
| parent | 56b3d975bbce65f655c5612b4822da671f9fd9b2 (diff) | |
| download | lwn-99d24edeb6abc6ca3a0d0fbdb83c664c04403c8c.tar.gz lwn-99d24edeb6abc6ca3a0d0fbdb83c664c04403c8c.zip | |
[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>
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/garbage.c')
0 files changed, 0 insertions, 0 deletions