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author | 2022-01-18 15:56:41 +0100 | |
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committer | 2023-02-08 01:06:39 +0000 | |
commit | 02dfd296342525a0802132d85d0ea51da841e5ce (patch) | |
tree | a4bdb7dbb25c30e8c6e9a9c379ee5e443de8fbab /src/vppinfra/rbtree.h | |
parent | aaad4f977cd7337b37cc6f00019f601f07abdced (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/rbtree.h')
0 files changed, 0 insertions, 0 deletions