Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-7392-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7392-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(233667);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/06");

  script_cve_id(
    "CVE-2021-47219",
    "CVE-2022-49034",
    "CVE-2024-23848",
    "CVE-2024-38588",
    "CVE-2024-43098",
    "CVE-2024-43900",
    "CVE-2024-44938",
    "CVE-2024-47707",
    "CVE-2024-48881",
    "CVE-2024-49884",
    "CVE-2024-49925",
    "CVE-2024-49936",
    "CVE-2024-49996",
    "CVE-2024-50051",
    "CVE-2024-52332",
    "CVE-2024-53112",
    "CVE-2024-53121",
    "CVE-2024-53124",
    "CVE-2024-53127",
    "CVE-2024-53130",
    "CVE-2024-53131",
    "CVE-2024-53135",
    "CVE-2024-53136",
    "CVE-2024-53138",
    "CVE-2024-53140",
    "CVE-2024-53142",
    "CVE-2024-53145",
    "CVE-2024-53146",
    "CVE-2024-53148",
    "CVE-2024-53150",
    "CVE-2024-53155",
    "CVE-2024-53156",
    "CVE-2024-53157",
    "CVE-2024-53158",
    "CVE-2024-53161",
    "CVE-2024-53165",
    "CVE-2024-53171",
    "CVE-2024-53172",
    "CVE-2024-53173",
    "CVE-2024-53174",
    "CVE-2024-53181",
    "CVE-2024-53183",
    "CVE-2024-53184",
    "CVE-2024-53194",
    "CVE-2024-53197",
    "CVE-2024-53198",
    "CVE-2024-53214",
    "CVE-2024-53217",
    "CVE-2024-53227",
    "CVE-2024-53239",
    "CVE-2024-53680",
    "CVE-2024-53690",
    "CVE-2024-55916",
    "CVE-2024-56531",
    "CVE-2024-56532",
    "CVE-2024-56539",
    "CVE-2024-56548",
    "CVE-2024-56558",
    "CVE-2024-56562",
    "CVE-2024-56567",
    "CVE-2024-56569",
    "CVE-2024-56570",
    "CVE-2024-56572",
    "CVE-2024-56574",
    "CVE-2024-56576",
    "CVE-2024-56581",
    "CVE-2024-56586",
    "CVE-2024-56587",
    "CVE-2024-56593",
    "CVE-2024-56594",
    "CVE-2024-56595",
    "CVE-2024-56596",
    "CVE-2024-56597",
    "CVE-2024-56598",
    "CVE-2024-56600",
    "CVE-2024-56601",
    "CVE-2024-56602",
    "CVE-2024-56603",
    "CVE-2024-56605",
    "CVE-2024-56606",
    "CVE-2024-56614",
    "CVE-2024-56615",
    "CVE-2024-56619",
    "CVE-2024-56629",
    "CVE-2024-56630",
    "CVE-2024-56631",
    "CVE-2024-56633",
    "CVE-2024-56634",
    "CVE-2024-56637",
    "CVE-2024-56642",
    "CVE-2024-56643",
    "CVE-2024-56644",
    "CVE-2024-56645",
    "CVE-2024-56650",
    "CVE-2024-56659",
    "CVE-2024-56670",
    "CVE-2024-56681",
    "CVE-2024-56688",
    "CVE-2024-56690",
    "CVE-2024-56691",
    "CVE-2024-56694",
    "CVE-2024-56700",
    "CVE-2024-56704",
    "CVE-2024-56720",
    "CVE-2024-56723",
    "CVE-2024-56724",
    "CVE-2024-56739",
    "CVE-2024-56746",
    "CVE-2024-56747",
    "CVE-2024-56748",
    "CVE-2024-56756",
    "CVE-2024-56767",
    "CVE-2024-56769",
    "CVE-2024-56770",
    "CVE-2024-56779",
    "CVE-2024-56780",
    "CVE-2024-57802",
    "CVE-2024-57807",
    "CVE-2024-57849",
    "CVE-2024-57850",
    "CVE-2024-57884",
    "CVE-2024-57889",
    "CVE-2024-57890",
    "CVE-2024-57892",
    "CVE-2024-57900",
    "CVE-2024-57901",
    "CVE-2024-57902",
    "CVE-2024-57904",
    "CVE-2024-57906",
    "CVE-2024-57908",
    "CVE-2024-57910",
    "CVE-2024-57911",
    "CVE-2024-57912",
    "CVE-2024-57913",
    "CVE-2024-57922",
    "CVE-2024-57929",
    "CVE-2024-57931",
    "CVE-2024-57938",
    "CVE-2024-57946",
    "CVE-2024-57948",
    "CVE-2024-57951",
    "CVE-2025-21638",
    "CVE-2025-21639",
    "CVE-2025-21640",
    "CVE-2025-21653",
    "CVE-2025-21664",
    "CVE-2025-21678",
    "CVE-2025-21687",
    "CVE-2025-21689",
    "CVE-2025-21694",
    "CVE-2025-21697",
    "CVE-2025-21699"
  );
  script_xref(name:"USN", value:"7392-1");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/04/30");

  script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-7392-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-7392-1 advisory.

    Chenyuan Yang discovered that the CEC driver driver in the Linux kernel contained a use-after-free
    vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly
    execute arbitrary code. (CVE-2024-23848)

    Attila Szsz discovered that the HFS+ file system implementation in the Linux Kernel contained a heap
    overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted,
    could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2025-0927)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to
    compromise the system. This update corrects flaws in the following subsystems:

    - PowerPC architecture;

    - S390 architecture;

    - SuperH RISC architecture;

    - User-Mode Linux (UML);

    - x86 architecture;

    - Cryptographic API;

    - Virtio block driver;

    - Data acquisition framework and drivers;

    - Hardware crypto device drivers;

    - DMA engine subsystem;

    - EDAC drivers;

    - ARM SCPI message protocol;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - Microsoft Hyper-V drivers;

    - I3C subsystem;

    - IIO ADC drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - LED subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - MMC subsystem;

    - MTD block device drivers;

    - Network drivers;

    - Mellanox network drivers;

    - NVME drivers;

    - PCI subsystem;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - Real Time Clock drivers;

    - SCSI subsystem;

    - SuperH / SH-Mobile drivers;

    - QCOM SoC drivers;

    - SPI subsystem;

    - USB Gadget drivers;

    - USB Serial drivers;

    - USB Type-C Port Controller Manager driver;

    - VFIO drivers;

    - Framebuffer layer;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - Ext4 file system;

    - F2FS file system;

    - GFS2 file system;

    - File systems infrastructure;

    - JFFS2 file system;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Overlay file system;

    - Proc file system;

    - Diskquota system;

    - SMB network file system;

    - UBI file system;

    - Timer subsystem;

    - VLANs driver;

    - LAPB network protocol;

    - Kernel init infrastructure;

    - BPF subsystem;

    - Kernel CPU control infrastructure;

    - Tracing infrastructure;

    - Memory management;

    - 9P file system network protocol;

    - Bluetooth subsystem;

    - CAN network layer;

    - Networking core;

    - DCCP (Datagram Congestion Control Protocol);

    - IEEE802154.4 network protocol;

    - IPv4 networking;

    - IPv6 networking;

    - IEEE 802.15.4 subsystem;

    - Netfilter;

    - Netlink;

    - NET/ROM layer;

    - Packet sockets;

    - Network traffic control;

    - SCTP protocol;

    - Sun RPC protocol;

    - TIPC protocol;

    - eXpress Data Path;

    - SELinux security module;

    - USB sound devices; (CVE-2024-56532, CVE-2024-53127, CVE-2024-56574, CVE-2024-56576, CVE-2024-57922,
    CVE-2024-53135, CVE-2024-56606, CVE-2024-53155, CVE-2024-53136, CVE-2024-56769, CVE-2024-56690,
    CVE-2024-53150, CVE-2024-38588, CVE-2024-53171, CVE-2024-56748, CVE-2024-56558, CVE-2024-56595,
    CVE-2024-56670, CVE-2024-56637, CVE-2024-56739, CVE-2024-56681, CVE-2024-53158, CVE-2024-53172,
    CVE-2024-56700, CVE-2024-56645, CVE-2024-56723, CVE-2024-56572, CVE-2024-57889, CVE-2024-43098,
    CVE-2024-56614, CVE-2024-53197, CVE-2025-21640, CVE-2024-57938, CVE-2024-53140, CVE-2024-57929,
    CVE-2024-56593, CVE-2024-56691, CVE-2025-21687, CVE-2024-56770, CVE-2024-53131, CVE-2024-56531,
    CVE-2024-56603, CVE-2025-21653, CVE-2024-53239, CVE-2024-57946, CVE-2024-56581, CVE-2024-56694,
    CVE-2024-56597, CVE-2024-57849, CVE-2024-56601, CVE-2024-53156, CVE-2024-56747, CVE-2024-53146,
    CVE-2025-21664, CVE-2024-53217, CVE-2025-21638, CVE-2024-53157, CVE-2024-56688, CVE-2024-47707,
    CVE-2024-53173, CVE-2024-56605, CVE-2024-56619, CVE-2024-49925, CVE-2024-49936, CVE-2024-56586,
    CVE-2024-57892, CVE-2024-56562, CVE-2024-57902, CVE-2024-53148, CVE-2024-53194, CVE-2024-56720,
    CVE-2024-53121, CVE-2024-48881, CVE-2024-56767, CVE-2024-56780, CVE-2024-56548, CVE-2024-57931,
    CVE-2024-56724, CVE-2024-53142, CVE-2024-53214, CVE-2025-21639, CVE-2024-43900, CVE-2024-56659,
    CVE-2024-57908, CVE-2024-57913, CVE-2024-53181, CVE-2024-56630, CVE-2024-56598, CVE-2024-56539,
    CVE-2024-57951, CVE-2024-56600, CVE-2024-52332, CVE-2024-55916, CVE-2024-53130, CVE-2024-56587,
    CVE-2024-57911, CVE-2024-57901, CVE-2024-57807, CVE-2024-49996, CVE-2025-21697, CVE-2024-53198,
    CVE-2024-53145, CVE-2024-57910, CVE-2022-49034, CVE-2024-56629, CVE-2024-56570, CVE-2024-57948,
    CVE-2024-53227, CVE-2024-56643, CVE-2024-56602, CVE-2024-57904, CVE-2024-56594, CVE-2024-56615,
    CVE-2024-53690, CVE-2024-56650, CVE-2025-21699, CVE-2024-56644, CVE-2024-56631, CVE-2024-53183,
    CVE-2024-50051, CVE-2024-49884, CVE-2024-56569, CVE-2024-56596, CVE-2024-57912, CVE-2024-56781,
    CVE-2024-57802, CVE-2024-56704, CVE-2024-57850, CVE-2024-57906, CVE-2025-21678, CVE-2024-56634,
    CVE-2024-53138, CVE-2021-47219, CVE-2024-57890, CVE-2024-53112, CVE-2024-53174, CVE-2024-56756,
    CVE-2024-56779, CVE-2024-57884, CVE-2024-56746, CVE-2024-53161, CVE-2024-57900, CVE-2024-56567,
    CVE-2024-56633, CVE-2025-21694, CVE-2024-53165, CVE-2024-56642, CVE-2024-53184, CVE-2024-44938,
    CVE-2024-53124, CVE-2025-21689, CVE-2024-53680)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-7392-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-21687");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/04/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1060-xilinx-zynqmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1088-ibm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1101-bluefield");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1129-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1140-oracle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1145-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1147-azure");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2025-2026 Canonical, Inc. / NASL script (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "ubuntu_pro_sub_detect.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');
include('ksplice.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
ubuntu_pro_detected = !empty_or_null(ubuntu_pro_detected);

var kernel_mappings = {
  '18.04': {
    '5.4.0': {
      'oracle': '5.4.0-1140',
      'gcp': '5.4.0-1145',
      'azure': '5.4.0-1147'
    }
  },
  '20.04': {
    '5.4.0': {
      'xilinx-zynqmp': '5.4.0-1060',
      'ibm': '5.4.0-1088',
      'bluefield': '5.4.0-1101',
      'kvm': '5.4.0-1129',
      'oracle': '5.4.0-1140',
      'gcp': '5.4.0-1145',
      'azure': '5.4.0-1147'
    }
  }
};

var host_kernel_release = get_kb_item('Host/uptrack-uname-r');
if (empty_or_null(host_kernel_release)) host_kernel_release = get_kb_item_or_exit('Host/uname-r');
var host_kernel_base_version = get_kb_item_or_exit('Host/Debian/kernel-base-version');
var host_kernel_type = get_kb_item_or_exit('Host/Debian/kernel-type');
if(empty_or_null(kernel_mappings[os_release][host_kernel_base_version][host_kernel_type])) audit(AUDIT_INST_VER_NOT_VULN, 'kernel ' + host_kernel_release);

var extra = '';
var kernel_fixed_version = kernel_mappings[os_release][host_kernel_base_version][host_kernel_type] + "-" + host_kernel_type;
if (!ubuntu_pro_detected) {
  extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
  extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
  extra += 'require an Ubuntu Pro subscription.\n\n';
}
if (deb_ver_cmp(ver1:host_kernel_release, ver2:kernel_fixed_version) < 0)
{
  extra += 'Running Kernel level of ' + host_kernel_release + ' does not meet the minimum fixed level of ' + kernel_fixed_version + ' for this advisory.\n\n';
}
  else
{
  audit(AUDIT_PATCH_INSTALLED, 'Kernel package for USN-7392-1');
}

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  var cve_list = make_list('CVE-2021-47219', 'CVE-2022-49034', 'CVE-2024-23848', 'CVE-2024-38588', 'CVE-2024-43098', 'CVE-2024-43900', 'CVE-2024-44938', 'CVE-2024-47707', 'CVE-2024-48881', 'CVE-2024-49884', 'CVE-2024-49925', 'CVE-2024-49936', 'CVE-2024-49996', 'CVE-2024-50051', 'CVE-2024-52332', 'CVE-2024-53112', 'CVE-2024-53121', 'CVE-2024-53124', 'CVE-2024-53127', 'CVE-2024-53130', 'CVE-2024-53131', 'CVE-2024-53135', 'CVE-2024-53136', 'CVE-2024-53138', 'CVE-2024-53140', 'CVE-2024-53142', 'CVE-2024-53145', 'CVE-2024-53146', 'CVE-2024-53148', 'CVE-2024-53150', 'CVE-2024-53155', 'CVE-2024-53156', 'CVE-2024-53157', 'CVE-2024-53158', 'CVE-2024-53161', 'CVE-2024-53165', 'CVE-2024-53171', 'CVE-2024-53172', 'CVE-2024-53173', 'CVE-2024-53174', 'CVE-2024-53181', 'CVE-2024-53183', 'CVE-2024-53184', 'CVE-2024-53194', 'CVE-2024-53197', 'CVE-2024-53198', 'CVE-2024-53214', 'CVE-2024-53217', 'CVE-2024-53227', 'CVE-2024-53239', 'CVE-2024-53680', 'CVE-2024-53690', 'CVE-2024-55916', 'CVE-2024-56531', 'CVE-2024-56532', 'CVE-2024-56539', 'CVE-2024-56548', 'CVE-2024-56558', 'CVE-2024-56562', 'CVE-2024-56567', 'CVE-2024-56569', 'CVE-2024-56570', 'CVE-2024-56572', 'CVE-2024-56574', 'CVE-2024-56576', 'CVE-2024-56581', 'CVE-2024-56586', 'CVE-2024-56587', 'CVE-2024-56593', 'CVE-2024-56594', 'CVE-2024-56595', 'CVE-2024-56596', 'CVE-2024-56597', 'CVE-2024-56598', 'CVE-2024-56600', 'CVE-2024-56601', 'CVE-2024-56602', 'CVE-2024-56603', 'CVE-2024-56605', 'CVE-2024-56606', 'CVE-2024-56614', 'CVE-2024-56615', 'CVE-2024-56619', 'CVE-2024-56629', 'CVE-2024-56630', 'CVE-2024-56631', 'CVE-2024-56633', 'CVE-2024-56634', 'CVE-2024-56637', 'CVE-2024-56642', 'CVE-2024-56643', 'CVE-2024-56644', 'CVE-2024-56645', 'CVE-2024-56650', 'CVE-2024-56659', 'CVE-2024-56670', 'CVE-2024-56681', 'CVE-2024-56688', 'CVE-2024-56690', 'CVE-2024-56691', 'CVE-2024-56694', 'CVE-2024-56700', 'CVE-2024-56704', 'CVE-2024-56720', 'CVE-2024-56723', 'CVE-2024-56724', 'CVE-2024-56739', 'CVE-2024-56746', 'CVE-2024-56747', 'CVE-2024-56748', 'CVE-2024-56756', 'CVE-2024-56767', 'CVE-2024-56769', 'CVE-2024-56770', 'CVE-2024-56779', 'CVE-2024-56780', 'CVE-2024-57802', 'CVE-2024-57807', 'CVE-2024-57849', 'CVE-2024-57850', 'CVE-2024-57884', 'CVE-2024-57889', 'CVE-2024-57890', 'CVE-2024-57892', 'CVE-2024-57900', 'CVE-2024-57901', 'CVE-2024-57902', 'CVE-2024-57904', 'CVE-2024-57906', 'CVE-2024-57908', 'CVE-2024-57910', 'CVE-2024-57911', 'CVE-2024-57912', 'CVE-2024-57913', 'CVE-2024-57922', 'CVE-2024-57929', 'CVE-2024-57931', 'CVE-2024-57938', 'CVE-2024-57946', 'CVE-2024-57948', 'CVE-2024-57951', 'CVE-2025-21638', 'CVE-2025-21639', 'CVE-2025-21640', 'CVE-2025-21653', 'CVE-2025-21664', 'CVE-2025-21678', 'CVE-2025-21687', 'CVE-2025-21689', 'CVE-2025-21694', 'CVE-2025-21697', 'CVE-2025-21699');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-7392-1');
  }
  else
  {
    extra = extra + ksplice_reporting_text();
  }
}
if (extra) {
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}