diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2022-01-18 15:56:41 +0100 |
|---|---|---|
| committer | Benoît Ganne <bganne@cisco.com> | 2023-02-06 16:08:09 +0100 |
| commit | 594a4a5129aad40cf2b0ebac6f57852fa79d6876 (patch) | |
| tree | 7e2a1f207aadc76bd1c22d3bb8c12d2dade4693b /src/vppinfra | |
| parent | babecb41329c68747517b8af576d08d36f42ade3 (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/vppinfra')
0 files changed, 0 insertions, 0 deletions