Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-7028-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7028-1. 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(207588);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/23");

  script_cve_id(
    "CVE-2021-47188",
    "CVE-2022-48791",
    "CVE-2022-48863",
    "CVE-2023-52527",
    "CVE-2023-52809",
    "CVE-2024-26651",
    "CVE-2024-26677",
    "CVE-2024-26733",
    "CVE-2024-26851",
    "CVE-2024-26880",
    "CVE-2024-26984",
    "CVE-2024-27398",
    "CVE-2024-27437",
    "CVE-2024-38570",
    "CVE-2024-38583",
    "CVE-2024-39480",
    "CVE-2024-39495",
    "CVE-2024-40902",
    "CVE-2024-42154",
    "CVE-2024-42160",
    "CVE-2024-42224",
    "CVE-2024-42228"
  );
  script_xref(name:"USN", value:"7028-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-7028-1)");

  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 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-7028-1 advisory.

    It was discovered that the JFS file system contained an out-of-bounds read vulnerability when printing
    xattr debug information. A local attacker could use this to cause a denial of service (system crash).

    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:

    - GPU drivers;

    - Greybus drivers;

    - Modular ISDN driver;

    - Multiple devices driver;

    - Network drivers;

    - SCSI drivers;

    - VFIO drivers;

    - F2FS file system;

    - GFS2 file system;

    - JFS file system;

    - NILFS2 file system;

    - Kernel debugger infrastructure;

    - Bluetooth subsystem;

    - IPv4 networking;

    - L2TP protocol;

    - Netfilter;

    - RxRPC session sockets; (CVE-2024-42154, CVE-2023-52527, CVE-2024-26733, CVE-2024-42160, CVE-2021-47188,
    CVE-2024-38570, CVE-2024-26851, CVE-2024-26984, CVE-2024-26677, CVE-2024-39480, CVE-2024-27398,
    CVE-2022-48791, CVE-2024-42224, CVE-2024-38583, CVE-2024-40902, CVE-2023-52809, CVE-2024-39495,
    CVE-2024-26651, CVE-2024-26880, CVE-2024-42228, CVE-2024-27437, CVE-2022-48863)

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-7028-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-42154");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/03/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/09/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/09/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1135-oracle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1156-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1166-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1173-aws");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1181-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-229-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-229-lowlatency");
  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) 2024 Canonical, Inc. / NASL script (C) 2024 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 (! ('16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', '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 = {
  '16.04': {
    '4.15.0': {
      'generic': '4.15.0-229',
      'lowlatency': '4.15.0-229',
      'oracle': '4.15.0-1135',
      'gcp': '4.15.0-1166',
      'aws': '4.15.0-1173',
      'azure': '4.15.0-1181'
    }
  },
  '18.04': {
    '4.15.0': {
      'generic': '4.15.0-229',
      'lowlatency': '4.15.0-229',
      'oracle': '4.15.0-1135',
      'kvm': '4.15.0-1156',
      'gcp': '4.15.0-1166',
      'aws': '4.15.0-1173',
      'azure': '4.15.0-1181'
    }
  }
};

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-7028-1');
}

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  var cve_list = make_list('CVE-2021-47188', 'CVE-2022-48791', 'CVE-2022-48863', 'CVE-2023-52527', 'CVE-2023-52809', 'CVE-2024-26651', 'CVE-2024-26677', 'CVE-2024-26733', 'CVE-2024-26851', 'CVE-2024-26880', 'CVE-2024-26984', 'CVE-2024-27398', 'CVE-2024-27437', 'CVE-2024-38570', 'CVE-2024-38583', 'CVE-2024-39480', 'CVE-2024-39495', 'CVE-2024-40902', 'CVE-2024-42154', 'CVE-2024-42160', 'CVE-2024-42224', 'CVE-2024-42228');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-7028-1');
  }
  else
  {
    extra = extra + ksplice_reporting_text();
  }
}
if (extra) {
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : extra
  );
  exit(0);
}