UBUNTU-CVE-2023-21264

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    UBUNTU-CVE-2023-21264

    Published: 14 Aug 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-21264

    Summary:

    Details: In multiple functions of mem_protect.c, there is a possible way to access hypervisor memory due to a memory access check in the wrong place. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

    References: https://ubuntu.com/security/CVE-2023-21264, https://source.android.com/docs/security/bulletin/2023-08-01, https://git.kernel.org/linus/09cce60bddd6461a93a5bf434265a47827d1bc6f, https://ubuntu.com/security/notices/USN-6383-1, https://ubuntu.com/security/notices/USN-6466-1, https://www.cve.org/CVERecord?id=CVE-2023-21264

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?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-2023-21264 | CVE-DB