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authorBenoît Ganne <bganne@cisco.com>2022-01-18 15:56:41 +0100
committerBenoît Ganne <bganne@cisco.com>2023-02-06 16:08:09 +0100
commit594a4a5129aad40cf2b0ebac6f57852fa79d6876 (patch)
tree7e2a1f207aadc76bd1c22d3bb8c12d2dade4693b /src/plugins/avf
parentbabecb41329c68747517b8af576d08d36f42ade3 (diff)
ipsec: fix AES CBC IV generation (CVE-2022-46397)stable/1908
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>
Diffstat (limited to 'src/plugins/avf')
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