Linux Distros Unpatched Vulnerability : CVE-2017-3226

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(254483);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/25");

  script_cve_id("CVE-2017-3226");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2017-3226");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that
    make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the
    configuration parameter CONFIG_ENV_AES=y) read environment variables from disk as the encrypted disk image
    is processed. An attacker with physical access to the device can manipulate the encrypted environment data
    to include a crafted two-byte sequence which triggers an error in environment variable parsing. This error
    condition is improperly handled by Das U-Boot, resulting in an immediate process termination with a
    debugging message. (CVE-2017-3226)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2017-3226");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2017-3226");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:P/AC:H/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-2017-3226");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/09/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/25");

  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:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:u-boot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:u-boot");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Ubuntu Linux-16.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "u-boot"},
          {"reference": "u-boot-amlogic"},
          {"reference": "u-boot-exynos"},
          {"reference": "u-boot-imx"},
          {"reference": "u-boot-mvebu"},
          {"reference": "u-boot-omap"},
          {"reference": "u-boot-qcom"},
          {"reference": "u-boot-qemu"},
          {"reference": "u-boot-rockchip"},
          {"reference": "u-boot-rpi"},
          {"reference": "u-boot-sifive"},
          {"reference": "u-boot-stm32"},
          {"reference": "u-boot-sunxi"},
          {"reference": "u-boot-tegra"},
          {"reference": "u-boot-tools"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "u-boot"},
          {"reference": "u-boot-amlogic"},
          {"reference": "u-boot-exynos"},
          {"reference": "u-boot-imx"},
          {"reference": "u-boot-mvebu"},
          {"reference": "u-boot-omap"},
          {"reference": "u-boot-qcom"},
          {"reference": "u-boot-qemu"},
          {"reference": "u-boot-rockchip"},
          {"reference": "u-boot-rpi"},
          {"reference": "u-boot-sifive"},
          {"reference": "u-boot-sunxi"},
          {"reference": "u-boot-tegra"},
          {"reference": "u-boot-tools"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "u-boot"},
          {"reference": "u-boot-amlogic-binaries"},
          {"reference": "u-boot-asahi"},
          {"reference": "u-boot-exynos"},
          {"reference": "u-boot-exynos-binaries"},
          {"reference": "u-boot-imx"},
          {"reference": "u-boot-mvebu"},
          {"reference": "u-boot-omap"},
          {"reference": "u-boot-qcom"},
          {"reference": "u-boot-qemu"},
          {"reference": "u-boot-rockchip"},
          {"reference": "u-boot-rpi"},
          {"reference": "u-boot-sifive"},
          {"reference": "u-boot-sitara-binaries"},
          {"reference": "u-boot-starfive"},
          {"reference": "u-boot-stm32"},
          {"reference": "u-boot-sunxi"},
          {"reference": "u-boot-tegra"},
          {"reference": "u-boot-tools"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "u-boot"},
          {"reference": "u-boot-amlogic-binaries"},
          {"reference": "u-boot-asahi"},
          {"reference": "u-boot-exynos"},
          {"reference": "u-boot-exynos-binaries"},
          {"reference": "u-boot-imx"},
          {"reference": "u-boot-mvebu"},
          {"reference": "u-boot-omap"},
          {"reference": "u-boot-qcom"},
          {"reference": "u-boot-qemu"},
          {"reference": "u-boot-rockchip"},
          {"reference": "u-boot-rpi"},
          {"reference": "u-boot-sifive"},
          {"reference": "u-boot-sitara-binaries"},
          {"reference": "u-boot-starfive"},
          {"reference": "u-boot-stm32"},
          {"reference": "u-boot-sunxi"},
          {"reference": "u-boot-tegra"},
          {"reference": "u-boot-tools"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "u-boot"},
          {"reference": "u-boot-exynos"},
          {"reference": "u-boot-imx"},
          {"reference": "u-boot-omap"},
          {"reference": "u-boot-rockchip"},
          {"reference": "u-boot-rpi"},
          {"reference": "u-boot-sunxi"},
          {"reference": "u-boot-tegra"},
          {"reference": "u-boot-tools"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}