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| author | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2012-08-31 09:55:53 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-26 11:34:54 -0800 |
| commit | 9e8b32b0a0e7981f157b2073dd4c6f354340c3e6 (patch) | |
| tree | 3d999405a1fe7d3485e97dd60b1d477190366172 /net/ipv4 | |
| parent | d87b26d50da9eca1be14216c9f7dac5b9b0ae3f9 (diff) | |
| download | kernel_samsung_smdk4412-9e8b32b0a0e7981f157b2073dd4c6f354340c3e6.zip kernel_samsung_smdk4412-9e8b32b0a0e7981f157b2073dd4c6f354340c3e6.tar.gz kernel_samsung_smdk4412-9e8b32b0a0e7981f157b2073dd4c6f354340c3e6.tar.bz2 | |
netfilter: Mark SYN/ACK packets as invalid from original direction
commit 64f509ce71b08d037998e93dd51180c19b2f464c upstream.
Clients should not send such packets. By accepting them, we open
up a hole by wich ephemeral ports can be discovered in an off-path
attack.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4')
0 files changed, 0 insertions, 0 deletions