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    CVE-2020-8897

    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.

    Published:Nov 16, 2020
    Last Modified:Nov 21, 2024
    EPS:Nov 16, 2020
    EPSS Score:0.00078
    CVSS Score:4.8

    Affected Products

    Vendor
    Amazon
    Product
    Aws Encryption Sdk

    Exploits

    https://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphfhttps://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphf

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High