DEBIAN-CVE-2021-42340

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    DEBIAN-CVE-2021-42340

    Published: 14 Oct 2021Last Modified: 1 Sept 2026
    Upstream:
    CVE-2021-42340

    Summary:

    Details: The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.

    References: https://security-tracker.debian.org/tracker/CVE-2021-42340

    Affected packages

    Package

    Name: tomcat9

    Purl: pkg:deb/debian/tomcat9?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -9.0.54-1

    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
    DEBIAN-CVE-2021-42340 | CVE-DB