diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2022-01-18 15:56:41 +0100 |
|---|---|---|
| committer | Benoît Ganne <bganne@cisco.com> | 2023-02-07 18:30:24 +0100 |
| commit | 2ef2ac780ee54e14e9c8b89cf7de0a61ccddfad4 (patch) | |
| tree | b46a1ce4b0f8c6a4963f502924b26756194abbb3 /test/vpp_mac.py | |
| parent | bb25fbf28c3a6cbe361db74d731d145e868fc716 (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>
Diffstat (limited to 'test/vpp_mac.py')
0 files changed, 0 insertions, 0 deletions