UBUNTU-CVE-2021-22883

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    UBUNTU-CVE-2021-22883

    Published: 3 Mar 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-22883
    Aliases:
    USN-6418-1

    Summary:

    Details: Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.

    References: https://ubuntu.com/security/CVE-2021-22883, https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/, https://hackerone.com/reports/1043360, https://ubuntu.com/security/notices/USN-6418-1, https://www.cve.org/CVERecord?id=CVE-2021-22883

    Affected packages

    Package

    Name: nodejs

    Purl: pkg:deb/ubuntu/[email protected]~dfsg-2ubuntu0.4+esm6?arch=source&distro=esm-apps/bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    6.11.4~dfsg-1ubuntu1
    6.11.4~dfsg-1ubuntu2

    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
    UBUNTU-CVE-2021-22883 | CVE-DB