Aws Encryption Sdk For Python
Monthly
Cryptographic algorithm downgrade in AWS Encryption SDK for Python's caching layer allows authenticated local attackers to bypass key commitment policy enforcement through a shared key cache, enabling decryption of single ciphertext to multiple different plaintexts. Affected versions include Python 2 up to 2.5.1, Python 3 up to 3.3.0, and Python 4 up to 4.0.4. AWS has released vendor patches (versions 3.3.1, 4.0.5, and later) to remediate the vulnerability, which requires local access and authenticated credentials but has no known public exploit.
Cryptographic algorithm downgrade in AWS Encryption SDK for Python's caching layer allows authenticated local attackers to bypass key commitment policy enforcement through a shared key cache, enabling decryption of single ciphertext to multiple different plaintexts. Affected versions include Python 2 up to 2.5.1, Python 3 up to 3.3.0, and Python 4 up to 4.0.4. AWS has released vendor patches (versions 3.3.1, 4.0.5, and later) to remediate the vulnerability, which requires local access and authenticated credentials but has no known public exploit.