UBUNTU-CVE-2023-6238

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    UBUNTU-CVE-2023-6238

    Published: 21 Nov 2023Last Modified: 6 Oct 2026
    Upstream:
    CVE-2023-6238

    Summary:

    Details: A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

    References: https://ubuntu.com/security/CVE-2023-6238, https://access.redhat.com/security/cve/CVE-2023-6238, https://lore.kernel.org/linux-nvme/[email protected]/T/#u, https://lore.kernel.org/linux-nvme/[email protected]/T/#u, https://www.cve.org/CVERecord?id=CVE-2023-6238

    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-2023-6238 | CVE-DB