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    CVE-2018-21035

    In Qt through 5.14.1, the WebSocket implementation accepts up to 2GB for frames and 2GB for messages. Smaller limits cannot be configured. This makes it easier for attackers to cause a denial of service (memory consumption).

    Published:Sep 23, 2018
    Last Modified:Nov 21, 2024
    EPS:Feb 28, 2020
    EPSS Score:0.00435
    CVSS Score:7.5

    Affected Products

    Vendor
    Qt
    Product
    Qt
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://bugreports.qt.io/browse/QTBUG-70693https://bugreports.qt.io/browse/QTBUG-70693

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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