UBUNTU-CVE-2022-2196

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    UBUNTU-CVE-2022-2196

    Published: 9 Jan 2023Last Modified: 9 Sept 2026
    Upstream:
    CVE-2022-2196
    Aliases:
    USN-5970-1
    USN-5976-1
    USN-5977-1

    Summary:

    Details: A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past commit 2e7eab81425a

    References: https://ubuntu.com/security/CVE-2022-2196, https://git.kernel.org/linus/2e7eab81425ad6c875f2ed47c0ce01e78afc38a5, https://ubuntu.com/security/notices/USN-5970-1, https://ubuntu.com/security/notices/USN-5976-1, https://ubuntu.com/security/notices/USN-5977-1, https://ubuntu.com/security/notices/USN-5978-1, https://ubuntu.com/security/notices/USN-5979-1, https://ubuntu.com/security/notices/USN-5980-1, https://ubuntu.com/security/notices/USN-5982-1, https://ubuntu.com/security/notices/USN-5985-1, https://ubuntu.com/security/notices/USN-5987-1, https://ubuntu.com/security/notices/USN-6004-1, https://ubuntu.com/security/notices/USN-6020-1, https://ubuntu.com/security/notices/USN-6151-1, https://www.cve.org/CVERecord?id=CVE-2022-2196

    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-2022-2196 | CVE-DB