CVE-2020-8897

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.

Risk Information

Base Score

8.1

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Score

Exploitation Probability

0.078

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2020-8897 are fixed in Amazon-aws-encryption-sdk-java 2.0.0	Windows
Vulnerabilities CVE-2020-8897 are fixed in Python-aws-encryption-sdk 2.0.0	Windows
Vulnerabilities CVE-2020-8897 are fixed in Amazon-aws-encryption-sdk-java for Linux 2.0.0	Linux
Vulnerabilities CVE-2020-8897 are fixed in Python-aws-encryption-sdk for linux 2.0.0	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234