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PYSEC-2020-261
Quick fix
PYSEC-2020-261 — aws-encryption-sdk: upgrade to the fixed version with the command below.
pip install --upgrade 'aws-encryption-sdk>=2.0.0'Details
A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM (and other AEAD ciphers such as AES-GCM-SIV or (X)ChaCha20Poly1305) used by the SDKs to encrypt messages, an attacker can craft a unique cyphertext which will decrypt to multiple different results, and becomes especially relevant in a multi-recipient setting. We recommend users update their SDK to 2.0.0 or later.
Are you affected?
Enter the version of the package you're using.
Affected packages
PyPI/aws-encryption-sdk
Introduced in:
0Fixed in: 2.0.0Fix
pip install --upgrade 'aws-encryption-sdk>=2.0.0'