CVE-2020-8897
4.8
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Amazon | AWS SDK | stable < 2.0.0 | affected |
Weaknesses
- CWE-310: CWE-310 Cryptographic Issues
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphf
- https://aws.amazon.com/blogs/security/improved-client-side-encryption-explicit-keyids-and-key-commitment/
References
- https://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphf
- https://aws.amazon.com/blogs/security/improved-client-side-encryption-explicit-keyids-and-key-commitment/
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