UBUNTU-CVE-2022-1055

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    UBUNTU-CVE-2022-1055

    Published: 29 Mar 2022Last Modified: 9 Sept 2026
    Upstream:
    CVE-2022-1055
    Aliases:
    USN-5358-1
    USN-5358-2
    USN-5368-1

    Summary:

    Details: A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

    References: https://ubuntu.com/security/CVE-2022-1055, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5, https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc, https://ubuntu.com/security/notices/USN-5358-1, https://ubuntu.com/security/notices/USN-5358-2, https://ubuntu.com/security/notices/USN-5368-1, https://ubuntu.com/security/notices/USN-5377-1, https://www.cve.org/CVERecord?id=CVE-2022-1055

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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
    UBUNTU-CVE-2022-1055 | CVE-DB