]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: ea7552c) | patch
netfilter: Validate the sequence number of dataless ACK packets as well
authorJozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Fri, 31 Aug 2012 09:55:54 +0000 (09:55 +0000)
committerPablo Neira Ayuso <pablo@netfilter.org>
Sun, 9 Sep 2012 20:13:49 +0000 (22:13 +0200)
commit365ff176d0517b7828ad7f002069e1cfcd01d2c9
tree8389e2f3b55cfcec5770a9fd83b9a52c31e4128btree | snapshot
parentea7552c23f87f409fed586b6563dd4bf33643824commit | diff
netfilter: Validate the sequence number of dataless ACK packets as well

We spare nothing by not validating the sequence number of dataless
ACK packets and enabling it makes harder off-path attacks.

See: "Reflection scan: an Off-Path Attack on TCP" by Jan Wrobel,
http://arxiv.org/abs/1201.2074

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_conntrack_proto_tcp.c diff | blob | history
Linux Kernel Source Tree.