VDB
CVE-2020-8897
CVE-2020-8897
PUBLISHED
CVSS 4.800000190734863 MEDIUM
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.
EPSS 0.08% · 23.3th percentile
Risk Scores
CVSS 3.1
4.800000190734863
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
EPSS Score
0.08%
23.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| amazon | aws_encryption_sdk | 0 |
| PyPI | aws-encryption-sdk | 0 |
| Amazon | AWS SDK | stable |
| Maven | com.amazonaws:aws-encryption-sdk-java | 0 |
Timeline
- Nov 16, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphf url
- https://aws.amazon.com/blogs/security/improved-client-side-encryption-explicit-keyids-and-key-commitment/ url
- https://nvd.nist.gov/vuln/detail/CVE-2020-8897 advisory
- https://aws.amazon.com/blogs/security/improved-client-side-encryption-explicit-keyids-and-key-commitment url
- https://github.com/pypa/advisory-database/tree/main/vulns/aws-encryption-sdk/PYSEC-2020-261.yaml url