Linux Distros Unpatched Vulnerability : CVE-2025-61663

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

include('compat.inc');

if (description)
{
  script_id(275739);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/21");

  script_cve_id("CVE-2025-61663");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2025-61663");

  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.

  - A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate
    Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is
    not properly unregistered when the module is unloaded. An attacker who can execute this command can force
    the system to access memory locations that are no longer valid. Successful exploitation leads directly to
    system instability, which can result in a complete crash and halt system availability. Impact on the data
    integrity and confidentiality is also not discarded. (CVE-2025-61663)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2025-61663");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-61663");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2025-61663");
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  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-61663");

  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:"2025/11/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
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  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:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  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:25.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:8");
  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:redhat:enterprise_linux:10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
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  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:grub2-signed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:grub2-unsigned");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-aa64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-aa64-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-aa64-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-ia32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-ia32-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-ia32-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-x64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-x64-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-efi-x64-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-pc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-pc-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-ppc-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-ppc64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-ppc64-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-ppc64le");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-ppc64le-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-tools-efi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-tools-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:grub2-tools-minimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:grub2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:grub2-efi");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64-cdboot");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:grub2-ppc64-modules");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 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/CentOS Linux-7", "Host/OS/CentOS Linux-8", "Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Red Hat Enterprise Linux-10", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Red Hat Enterprise Linux-9", "Host/OS/Ubuntu Linux-14.04", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-25.04", "Host/OS/Ubuntu Linux-25.10");

  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/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "grub-common"},
          {"reference": "grub-coreboot"},
          {"reference": "grub-coreboot-bin"},
          {"reference": "grub-coreboot-dbg"},
          {"reference": "grub-efi"},
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed-template"},
          {"reference": "grub-efi-arm"},
          {"reference": "grub-efi-arm-bin"},
          {"reference": "grub-efi-arm-dbg"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed-template"},
          {"reference": "grub-efi-ia32"},
          {"reference": "grub-efi-ia32-bin"},
          {"reference": "grub-efi-ia32-dbg"},
          {"reference": "grub-efi-ia32-signed-template"},
          {"reference": "grub-efi-ia64"},
          {"reference": "grub-efi-ia64-bin"},
          {"reference": "grub-efi-ia64-dbg"},
          {"reference": "grub-emu"},
          {"reference": "grub-emu-dbg"},
          {"reference": "grub-firmware-qemu"},
          {"reference": "grub-ieee1275"},
          {"reference": "grub-ieee1275-bin"},
          {"reference": "grub-ieee1275-dbg"},
          {"reference": "grub-linuxbios"},
          {"reference": "grub-mount-udeb"},
          {"reference": "grub-pc"},
          {"reference": "grub-pc-bin"},
          {"reference": "grub-pc-dbg"},
          {"reference": "grub-rescue-pc"},
          {"reference": "grub-theme-starfield"},
          {"reference": "grub-uboot"},
          {"reference": "grub-uboot-bin"},
          {"reference": "grub-uboot-dbg"},
          {"reference": "grub-xen"},
          {"reference": "grub-xen-bin"},
          {"reference": "grub-xen-dbg"},
          {"reference": "grub-xen-host"},
          {"reference": "grub-yeeloong"},
          {"reference": "grub-yeeloong-bin"},
          {"reference": "grub-yeeloong-dbg"},
          {"reference": "grub2"},
          {"reference": "grub2-common"}
        ]
      }
    ]
  },
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "grub-common"},
          {"reference": "grub-coreboot"},
          {"reference": "grub-coreboot-bin"},
          {"reference": "grub-coreboot-dbg"},
          {"reference": "grub-efi"},
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed-template"},
          {"reference": "grub-efi-arm"},
          {"reference": "grub-efi-arm-bin"},
          {"reference": "grub-efi-arm-dbg"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed-template"},
          {"reference": "grub-efi-ia32"},
          {"reference": "grub-efi-ia32-bin"},
          {"reference": "grub-efi-ia32-dbg"},
          {"reference": "grub-efi-ia32-signed-template"},
          {"reference": "grub-efi-ia64"},
          {"reference": "grub-efi-ia64-bin"},
          {"reference": "grub-efi-ia64-dbg"},
          {"reference": "grub-emu"},
          {"reference": "grub-emu-dbg"},
          {"reference": "grub-firmware-qemu"},
          {"reference": "grub-ieee1275"},
          {"reference": "grub-ieee1275-bin"},
          {"reference": "grub-ieee1275-dbg"},
          {"reference": "grub-linuxbios"},
          {"reference": "grub-mount-udeb"},
          {"reference": "grub-pc"},
          {"reference": "grub-pc-bin"},
          {"reference": "grub-pc-dbg"},
          {"reference": "grub-rescue-pc"},
          {"reference": "grub-theme-starfield"},
          {"reference": "grub-uboot"},
          {"reference": "grub-uboot-bin"},
          {"reference": "grub-uboot-dbg"},
          {"reference": "grub-xen"},
          {"reference": "grub-xen-bin"},
          {"reference": "grub-xen-dbg"},
          {"reference": "grub-xen-host"},
          {"reference": "grub-yeeloong"},
          {"reference": "grub-yeeloong-bin"},
          {"reference": "grub-yeeloong-dbg"},
          {"reference": "grub2"},
          {"reference": "grub2-common"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "grub-common"},
          {"reference": "grub-coreboot"},
          {"reference": "grub-coreboot-bin"},
          {"reference": "grub-coreboot-dbg"},
          {"reference": "grub-efi"},
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed-template"},
          {"reference": "grub-efi-amd64-unsigned"},
          {"reference": "grub-efi-arm"},
          {"reference": "grub-efi-arm-bin"},
          {"reference": "grub-efi-arm-dbg"},
          {"reference": "grub-efi-arm-unsigned"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed-template"},
          {"reference": "grub-efi-arm64-unsigned"},
          {"reference": "grub-efi-ia32"},
          {"reference": "grub-efi-ia32-bin"},
          {"reference": "grub-efi-ia32-dbg"},
          {"reference": "grub-efi-ia32-signed-template"},
          {"reference": "grub-efi-ia32-unsigned"},
          {"reference": "grub-efi-ia64"},
          {"reference": "grub-efi-ia64-bin"},
          {"reference": "grub-efi-ia64-dbg"},
          {"reference": "grub-efi-ia64-unsigned"},
          {"reference": "grub-efi-loong64"},
          {"reference": "grub-efi-loong64-bin"},
          {"reference": "grub-efi-loong64-dbg"},
          {"reference": "grub-efi-loong64-unsigned"},
          {"reference": "grub-efi-riscv64"},
          {"reference": "grub-efi-riscv64-bin"},
          {"reference": "grub-efi-riscv64-dbg"},
          {"reference": "grub-efi-riscv64-unsigned"},
          {"reference": "grub-emu"},
          {"reference": "grub-emu-dbg"},
          {"reference": "grub-firmware-qemu"},
          {"reference": "grub-ieee1275"},
          {"reference": "grub-ieee1275-bin"},
          {"reference": "grub-ieee1275-dbg"},
          {"reference": "grub-linuxbios"},
          {"reference": "grub-pc"},
          {"reference": "grub-pc-bin"},
          {"reference": "grub-pc-dbg"},
          {"reference": "grub-rescue-pc"},
          {"reference": "grub-uboot"},
          {"reference": "grub-uboot-bin"},
          {"reference": "grub-uboot-dbg"},
          {"reference": "grub-xen-bin"},
          {"reference": "grub2"},
          {"reference": "grub2-common"}
        ]
      }
    ]
  },
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "grub-common"},
          {"reference": "grub-coreboot"},
          {"reference": "grub-coreboot-bin"},
          {"reference": "grub-coreboot-dbg"},
          {"reference": "grub-efi"},
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm"},
          {"reference": "grub-efi-arm-bin"},
          {"reference": "grub-efi-arm-dbg"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-ia32"},
          {"reference": "grub-efi-ia32-bin"},
          {"reference": "grub-efi-ia32-dbg"},
          {"reference": "grub-efi-ia64"},
          {"reference": "grub-efi-ia64-bin"},
          {"reference": "grub-efi-ia64-dbg"},
          {"reference": "grub-emu"},
          {"reference": "grub-emu-dbg"},
          {"reference": "grub-firmware-qemu"},
          {"reference": "grub-ieee1275"},
          {"reference": "grub-ieee1275-bin"},
          {"reference": "grub-ieee1275-dbg"},
          {"reference": "grub-linuxbios"},
          {"reference": "grub-mount-udeb"},
          {"reference": "grub-pc"},
          {"reference": "grub-pc-bin"},
          {"reference": "grub-pc-dbg"},
          {"reference": "grub-rescue-pc"},
          {"reference": "grub-theme-starfield"},
          {"reference": "grub-uboot"},
          {"reference": "grub-uboot-bin"},
          {"reference": "grub-uboot-dbg"},
          {"reference": "grub-xen"},
          {"reference": "grub-xen-bin"},
          {"reference": "grub-xen-dbg"},
          {"reference": "grub-yeeloong"},
          {"reference": "grub-yeeloong-bin"},
          {"reference": "grub-yeeloong-dbg"},
          {"reference": "grub2"},
          {"reference": "grub2-common"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm64-signed"},
          {"reference": "grub2-unsigned"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm64-signed"},
          {"reference": "grub2-unsigned"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm64-signed"},
          {"reference": "grub2-unsigned"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-amd64-unsigned"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed"},
          {"reference": "grub-efi-arm64-unsigned"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "grub-efi-amd64"},
          {"reference": "grub-efi-amd64-bin"},
          {"reference": "grub-efi-amd64-dbg"},
          {"reference": "grub-efi-amd64-signed"},
          {"reference": "grub-efi-amd64-unsigned"},
          {"reference": "grub-efi-arm64"},
          {"reference": "grub-efi-arm64-bin"},
          {"reference": "grub-efi-arm64-dbg"},
          {"reference": "grub-efi-arm64-signed"},
          {"reference": "grub-efi-arm64-unsigned"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi-aa64"},
          {"reference": "grub2-efi-aa64-cdboot"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-efi"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi-aa64"},
          {"reference": "grub2-efi-aa64-cdboot"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-efi"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-ia32"},
          {"reference": "grub2-efi-ia32-cdboot"},
          {"reference": "grub2-efi-ia32-modules"},
          {"reference": "grub2-efi-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc-modules"},
          {"reference": "grub2-ppc64"},
          {"reference": "grub2-ppc64-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-ia32"},
          {"reference": "grub2-efi-ia32-cdboot"},
          {"reference": "grub2-efi-ia32-modules"},
          {"reference": "grub2-efi-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc-modules"},
          {"reference": "grub2-ppc64"},
          {"reference": "grub2-ppc64-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi-aa64"},
          {"reference": "grub2-efi-aa64-cdboot"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-ia32"},
          {"reference": "grub2-efi-ia32-cdboot"},
          {"reference": "grub2-efi-ia32-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-efi"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "grub2"},
          {"reference": "grub2-common"},
          {"reference": "grub2-efi-aa64"},
          {"reference": "grub2-efi-aa64-cdboot"},
          {"reference": "grub2-efi-aa64-modules"},
          {"reference": "grub2-efi-ia32"},
          {"reference": "grub2-efi-ia32-cdboot"},
          {"reference": "grub2-efi-ia32-modules"},
          {"reference": "grub2-efi-x64"},
          {"reference": "grub2-efi-x64-cdboot"},
          {"reference": "grub2-efi-x64-modules"},
          {"reference": "grub2-pc"},
          {"reference": "grub2-pc-modules"},
          {"reference": "grub2-ppc64le"},
          {"reference": "grub2-ppc64le-modules"},
          {"reference": "grub2-tools"},
          {"reference": "grub2-tools-efi"},
          {"reference": "grub2-tools-extra"},
          {"reference": "grub2-tools-minimal"}
        ]
      }
    ]
  }
};

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');
}