Ubuntu 22.04 LTS / 24.04 LTS : U-Boot vulnerabilities (USN-8056-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8056-1. 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(299808);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/23");

  script_cve_id(
    "CVE-2024-57254",
    "CVE-2024-57255",
    "CVE-2024-57256",
    "CVE-2024-57257",
    "CVE-2024-57258",
    "CVE-2024-57259"
  );
  script_xref(name:"USN", value:"8056-1");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS : U-Boot vulnerabilities (USN-8056-1)");

  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 host has packages installed that are affected by multiple vulnerabilities as
referenced in the USN-8056-1 advisory.

    Simon Diepold discovered that U-Boot incorrectly handled certain DHCP responses. An attacker on the local
    network could possibly use this issue to obtain sensitive memory contents. (CVE-2024-42040)

    It was discovered that U-Boot incorrectly handled symlink size calculations in squashfs file systems. An
    attacker could use this issue with a specially crafted squashfs file system to cause U-Boot to crash,
    resulting in a denial of service, or execute arbitrary code. (CVE-2024-57254)

    It was discovered that U-Boot incorrectly handled inode size calculations in squashfs file systems. An
    attacker could use this issue with a specially crafted squashfs file system to cause U-Boot to crash,
    resulting in a denial of service, or execute arbitrary code. (CVE-2024-57255)

    It was discovered that U-Boot incorrectly handled inode size calculations in EXT4 file systems. An
    attacker could use this issue with a specially crafted EXT4 file system to cause U-Boot to crash,
    resulting in a denial of service, or execute arbitrary code. (CVE-2024-57256)

    It was discovered that U-Boot incorrectly handled deep symlink nesting in squashfs file systems. An
    attacker could possibly use this issue with a specially crafted squashfs file system to cause U-Boot to
    crash, resulting in a denial of service. (CVE-2024-57257)

    It was discovered that U-Boot incorrectly handled memory allocation in squashfs file systems. An attacker
    could use this issue with a specially crafted squashfs file system to cause U-Boot to crash, resulting in
    a denial of service, or execute arbitrary code. (CVE-2024-57258)

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-8056-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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-2024-57259");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-57258");

  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:"2025/02/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/02/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/23");

  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:"p-cpe:/a:canonical:ubuntu_linux:u-boot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-amlogic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-amlogic-binaries");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-asahi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-exynos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-exynos-binaries");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-imx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-microchip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-mvebu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-qcom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-rockchip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-rpi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-sifive");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-sitara-binaries");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-starfive");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-stm32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-sunxi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-tegra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot-tools");
  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)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04', '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 pkgs = [
    {'osver': '22.04', 'pkgname': 'u-boot', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-amlogic', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-exynos', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-imx', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-microchip', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-mvebu', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-qcom', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-qemu', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-rockchip', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-rpi', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-sifive', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-sunxi', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-tegra', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '22.04', 'pkgname': 'u-boot-tools', 'pkgver': '2022.01+dfsg-2ubuntu2.7'},
    {'osver': '24.04', 'pkgname': 'u-boot-amlogic', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-amlogic-binaries', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-asahi', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-exynos', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-exynos-binaries', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-imx', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-microchip', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-mvebu', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-qcom', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-qemu', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-rockchip', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-rpi', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-sifive', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-sitara-binaries', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-starfive', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-stm32', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-sunxi', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-tegra', 'pkgver': '2025.10-0ubuntu0.24.04.2'},
    {'osver': '24.04', 'pkgname': 'u-boot-tools', 'pkgver': '2025.10-0ubuntu0.24.04.2'}
];

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_HOLE,
    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, 'u-boot / u-boot-amlogic / u-boot-amlogic-binaries / u-boot-asahi / etc');
}