DEBIAN-CVE-2020-27782

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    DEBIAN-CVE-2020-27782

    Published: 23 Feb 2021Last Modified: 11 Sept 2026
    Upstream:
    CVE-2020-27782

    Summary:

    Details: A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

    References: https://security-tracker.debian.org/tracker/CVE-2020-27782

    Affected packages

    Package

    Name: undertow

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.4-1

    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-2020-27782 | CVE-DB