CVE-2020-8897
Robustness weakness in AWS KMS and Encryption SDKs
- State
- Published
- Severity
- 4.8 Medium
- Published
- Nov 16, 2020
- Updated
- Aug 4, 2024
- Reserved
- Feb 12, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
Weaknesses
- CWE-310 Cryptographic Issues
Affected Products
| Product | Versions |
|---|---|
AWS SDKAmazon |
|
References
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