DEBIAN-CVE-2021-3859

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    DEBIAN-CVE-2021-3859

    Published: 26 Aug 2022Last Modified: 1 Sept 2026
    Upstream:
    CVE-2021-3859

    Summary:

    Details: A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.

    References: https://security-tracker.debian.org/tracker/CVE-2021-3859

    Affected packages

    Package

    Name: undertow

    Purl: pkg:deb/debian/undertow?arch=source&distro=forky

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.16-1

    Affected versions

    1.3.11-1
    1.3.16-1
    1.3.19-1
    1.3.21-1
    1.3.23-1
    1.3.4-1
    1.3.5-1
    1.3.7-1

    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-2021-3859 | CVE-DB