Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Amazon | AWS SDK | stable – < 2.0.0 | 2.0.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | com.amazonaws:aws-encryption-sdk-java | < 2.0.0 | 2.0.0 | GHSA-wqgp-vphw-hphf |
| PyPI | aws-encryption-sdk | < 2.0.0 | 2.0.0 | PYSEC-2020-261 |