Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : systemd vulnerabilities (USN-8402-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8402-1. 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(320397);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/11");

  script_cve_id("CVE-2023-7008", "CVE-2026-40226");
  script_xref(name:"USN", value:"8402-1");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : systemd vulnerabilities (USN-8402-1)");

  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 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-8402-1 advisory.

    It was discovered that systemd-nspawn incorrectly handled certain optional configuration files. A local
    attacker could possibly use this issue to escape to the host system and execute arbitrary code.
    (CVE-2026-40226)

    It was discovered that systemd-resolved incorrectly validated DNSSEC records for signed domains. An
    attacker could possibly use this issue to manipulate DNS records. This issue only affected Ubuntu 22.04
    LTS. (CVE-2023-7008)

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-8402-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-7008");

  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:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-myhostname");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-mymachines");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-resolve");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpam-systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsystemd-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsystemd-shared");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsystemd0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libudev-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libudev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-boot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-boot-efi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-boot-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-container");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-coredump");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-cryptsetup");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-homed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-journal-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-oomd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-repart");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-resolved");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-shutdown");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-sysusers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-tmpfiles");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-sysv");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-timesyncd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-ukify");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:systemd-userdbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:udev");
  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) 2026 Canonical, Inc. / NASL script (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('debian_package.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 (! ('22.04' >< os_release || '24.04' >< os_release || '25.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04 / 25.10', '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 pkgs = [
    {'osver': '22.04', 'pkgname': 'libnss-myhostname', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libnss-mymachines', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libnss-resolve', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libnss-systemd', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libpam-systemd', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libsystemd-dev', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libsystemd0', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libudev-dev', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'libudev1', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-container', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-coredump', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-journal-remote', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-oomd', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-repart', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-standalone-sysusers', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-standalone-tmpfiles', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-sysv', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-tests', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'systemd-timesyncd', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '22.04', 'pkgname': 'udev', 'pkgver': '249.11-0ubuntu3.21', 'cves': ['CVE-2023-7008', 'CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libnss-myhostname', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libnss-mymachines', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libnss-resolve', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libnss-systemd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libpam-systemd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libsystemd-dev', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libsystemd-shared', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libsystemd0', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libudev-dev', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'libudev1', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-boot', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-boot-efi', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-container', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-coredump', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-dev', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-homed', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-journal-remote', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-oomd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-resolved', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-standalone-sysusers', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-standalone-tmpfiles', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-sysv', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-tests', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-timesyncd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-ukify', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'systemd-userdbd', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '24.04', 'pkgname': 'udev', 'pkgver': '255.4-1ubuntu8.16', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libnss-myhostname', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libnss-mymachines', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libnss-resolve', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libnss-systemd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libpam-systemd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libsystemd-dev', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libsystemd-shared', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libsystemd0', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libudev-dev', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'libudev1', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-boot', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-boot-efi', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-boot-tools', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-container', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-coredump', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-cryptsetup', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-dev', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-homed', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-journal-remote', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-oomd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-repart', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-resolved', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-standalone-shutdown', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-standalone-sysusers', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-standalone-tmpfiles', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-sysv', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-tests', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-timesyncd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-ukify', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'systemd-userdbd', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']},
    {'osver': '25.10', 'pkgname': 'udev', 'pkgver': '257.9-0ubuntu2.5', 'cves': ['CVE-2026-40226']}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  if (osver && pkgname && pkgver) {
    if (deb_check(release:osver, prefix:pkgname, reference:pkgver, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libnss-myhostname / libnss-mymachines / libnss-resolve / etc');
}