The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL.
The S/MIME specification allows a Cipher Block Chaining (CBC) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL.
CVSS 3.0MEDIUM 5.9·Network·No auth·No interaction·EPSS 0.04144·Published 2018-05-16·Will not fix
