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authorBenoît Ganne <bganne@cisco.com>2022-01-18 15:56:41 +0100
committerBenoît Ganne <bganne@cisco.com>2023-02-07 18:30:24 +0100
commit2ef2ac780ee54e14e9c8b89cf7de0a61ccddfad4 (patch)
treeb46a1ce4b0f8c6a4963f502924b26756194abbb3 /docs/conf.py
parentbb25fbf28c3a6cbe361db74d731d145e868fc716 (diff)
ipsec: fix AES CBC IV generation (CVE-2022-46397)stable/2106
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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