UBUNTU-CVE-2022-4129

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    UBUNTU-CVE-2022-4129

    Published: 28 Nov 2022Last Modified: 9 Sept 2026
    Upstream:
    CVE-2022-4129
    Aliases:
    USN-6025-1
    USN-6027-1
    USN-6040-1

    Summary:

    Details: A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

    References: https://ubuntu.com/security/CVE-2022-4129, https://lore.kernel.org/all/[email protected]/t, https://lore.kernel.org/netdev/[email protected]/t, https://ubuntu.com/security/notices/USN-6025-1, https://ubuntu.com/security/notices/USN-6027-1, https://ubuntu.com/security/notices/USN-6040-1, https://ubuntu.com/security/notices/USN-6057-1, https://ubuntu.com/security/notices/USN-6079-1, https://ubuntu.com/security/notices/USN-6091-1, https://ubuntu.com/security/notices/USN-6093-1, https://ubuntu.com/security/notices/USN-6096-1, https://ubuntu.com/security/notices/USN-6134-1, https://ubuntu.com/security/notices/USN-6222-1, https://ubuntu.com/security/notices/USN-6256-1, https://www.cve.org/CVERecord?id=CVE-2022-4129

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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-2022-4129 | CVE-DB