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authorBenoît Ganne <bganne@cisco.com>2022-01-18 15:56:41 +0100
committerDave Wallace <dwallacelf@gmail.com>2023-02-03 21:04:24 -0500
commit9b8dc82531d9cbe5859488a886405a69b163f8a7 (patch)
tree62456aa3304aa68d4323bc665628cbee9fa4475d /src/vppinfra/bihash_24_16.h
parentd03b3bf62fdcf855d493653fc410c6bf839d6393 (diff)
ipsec: fix AES CBC IV generation (CVE-2022-46397)
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/vppinfra/bihash_24_16.h')
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