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    CVE-2023-43786

    A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.

    Published:Oct 4, 2023
    Last Modified:Nov 6, 2025
    EPS:Oct 10, 2023
    EPSS Score:0.00084
    CVSS Score:5.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    X.org
    Product
    Libx11

    Exploits

    https://github.com/jfrog/jfrog-CVE-2023-43786-libX11_DoS

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    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