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authorBenoît Ganne <bganne@cisco.com>2022-01-18 15:56:41 +0100
committerBenoît Ganne <bganne@cisco.com>2023-02-07 14:34:27 +0100
commit3c1021a679193475cbee59a717a53ece009e273f (patch)
tree880c7ea4d46f3237998f62730d4814981c74754f /src/vnet/ip6-nd/FEATURE.yaml
parentf53edbc3b4e35b368361e0c61b1adf0d5ab70bf7 (diff)
ipsec: fix AES CBC IV generation (CVE-2022-46397)stable/2005
For AES-CBC, the IV must be unpredictable (see NIST SP800-38a Appendix C). Chaining IVs like is done by ipsecmb and native backends for the VNET_CRYPTO_OP_FLAG_INIT_IV is fully predictable. Encrypt a counter as part of the message, making the (predictable) counter-generated IV unpredictable. Fixes: VPP-2037 Type: fix Change-Id: If4f192d62bf97dda553e7573331c75efa11822ae Signed-off-by: Benoît Ganne <bganne@cisco.com>
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