UBUNTU-CVE-2023-52454

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    UBUNTU-CVE-2023-52454

    Published: 23 Feb 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2023-52454
    Aliases:
    USN-6688-1
    USN-6725-1
    USN-6725-2

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110 Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().

    References: https://ubuntu.com/security/CVE-2023-52454, https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d, https://git.kernel.org/stable/c/f775f2621c2ac5cc3a0b3a64665dad4fb146e510, https://git.kernel.org/stable/c/4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d, https://git.kernel.org/stable/c/2871aa407007f6f531fae181ad252486e022df42, https://git.kernel.org/stable/c/24e05760186dc070d3db190ca61efdbce23afc88, https://git.kernel.org/stable/c/70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68, https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be, https://ubuntu.com/security/notices/USN-6688-1, https://ubuntu.com/security/notices/USN-6725-1, https://ubuntu.com/security/notices/USN-6726-1, https://www.cve.org/CVERecord?id=CVE-2023-52454, https://ubuntu.com/security/notices/USN-6725-2, https://ubuntu.com/security/notices/USN-6726-2, https://ubuntu.com/security/notices/USN-6726-3, https://ubuntu.com/security/notices/USN-6818-1, https://ubuntu.com/security/notices/USN-6819-1, https://ubuntu.com/security/notices/USN-6818-2, https://ubuntu.com/security/notices/USN-6819-2, https://ubuntu.com/security/notices/USN-6819-3, https://ubuntu.com/security/notices/USN-6818-3, https://ubuntu.com/security/notices/USN-6818-4, https://ubuntu.com/security/notices/USN-6819-4

    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-2023-52454 | CVE-DB