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    CVE-2021-4238

    Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This significantly reduces the amount of entropy in short strings generated by these functions.

    Published:Dec 27, 2022
    Last Modified:Apr 11, 2025
    EPS:Dec 27, 2022
    EPSS Score:0.00239
    CVSS Score:9.1

    Affected Products

    Vendor
    Goutils Project
    Product
    Goutils
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openshift Data Foundation
    Vendor
    Redhat
    Product
    Openshift Gitops
    Vendor
    Redhat
    Product
    Service Mesh

    Exploits

    https://pkg.go.dev/vuln/GO-2022-0411https://pkg.go.dev/vuln/GO-2022-0411

    Common Weakness Enumeration

    CWE-331 Insufficient Entropy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-59 Session Credential Falsification through Prediction

    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