BIT-spark-2021-38296

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    BIT-spark-2021-38296

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Apache Spark Key Negotiation Vulnerability

    Details: Apache Spark supports end-to-end encryption of RPC connections via "spark.authenticate" and "spark.network.crypto.enabled". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by "spark.authenticate.enableSaslEncryption", "spark.io.encryption.enabled", "spark.ssl", "spark.ui.strictTransportSecurity". Update to Apache Spark 3.1.3 or later

    References: https://lists.apache.org/thread/70x8fw2gx3g9ty7yk0f2f1dlpqml2smd, https://www.oracle.com/security-alerts/cpujul2022.html, https://nvd.nist.gov/vuln/detail/CVE-2021-38296

    Affected packages

    Package

    Name: spark

    Purl: pkg:bitnami/spark

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.1.3

    Affected versions

    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