Linux Distros Unpatched Vulnerability : CVE-2026-10822

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

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  script_cve_id("CVE-2026-10822");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-10822");

  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.

  - If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data,
    and may subsequently abort and exit. BIND will first need to store a DNS record for a key (KEY, DNSKEY,
    etc.). That key must specify a PRIVATEDNS algorithm (253), and in the algorithm identifier, improperly
    give a length longer than the actual identifier data. The invalid identifier will be stored. If BIND later
    needs to render that record to text, it will use the invalid length during processing, leading to a
    consistency check failing. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through
    9.20.24, 9.21.0 through 9.21.23, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
    (CVE-2026-10822)

Note that Nessus relies on the presence of the package as reported by the vendor.");
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  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-10822");
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  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-10822");

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  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/22");
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  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
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include('linux_unpatched.inc');

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        "release": "10",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-dnssec-utils"},
          {"reference": "bind-doc"},
          {"reference": "bind-libs"},
          {"reference": "bind-license"},
          {"reference": "bind-utils"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-libs"},
          {"reference": "bind-sdb"},
          {"reference": "bind-utils"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-export-devel"},
          {"reference": "bind-export-libs"},
          {"reference": "bind-libs"},
          {"reference": "bind-libs-lite"},
          {"reference": "bind-license"},
          {"reference": "bind-lite-devel"},
          {"reference": "bind-pkcs11"},
          {"reference": "bind-pkcs11-devel"},
          {"reference": "bind-pkcs11-libs"},
          {"reference": "bind-pkcs11-utils"},
          {"reference": "bind-sdb"},
          {"reference": "bind-sdb-chroot"},
          {"reference": "bind-utils"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-export-devel"},
          {"reference": "bind-export-libs"},
          {"reference": "bind-libs"},
          {"reference": "bind-libs-lite"},
          {"reference": "bind-license"},
          {"reference": "bind-lite-devel"},
          {"reference": "bind-pkcs11"},
          {"reference": "bind-pkcs11-devel"},
          {"reference": "bind-pkcs11-libs"},
          {"reference": "bind-pkcs11-utils"},
          {"reference": "bind-sdb"},
          {"reference": "bind-sdb-chroot"},
          {"reference": "bind-utils"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-export-devel"},
          {"reference": "bind-export-libs"},
          {"reference": "bind-libs"},
          {"reference": "bind-libs-lite"},
          {"reference": "bind-license"},
          {"reference": "bind-lite-devel"},
          {"reference": "bind-pkcs11"},
          {"reference": "bind-pkcs11-devel"},
          {"reference": "bind-pkcs11-libs"},
          {"reference": "bind-pkcs11-utils"},
          {"reference": "bind-sdb"},
          {"reference": "bind-sdb-chroot"},
          {"reference": "bind-utils"},
          {"reference": "bind9.16"},
          {"reference": "bind9.16-chroot"},
          {"reference": "bind9.16-devel"},
          {"reference": "bind9.16-dnssec-utils"},
          {"reference": "bind9.16-doc"},
          {"reference": "bind9.16-libs"},
          {"reference": "bind9.16-license"},
          {"reference": "bind9.16-utils"},
          {"reference": "python3-bind"},
          {"reference": "python3-bind9.16"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-export-devel"},
          {"reference": "bind-export-libs"},
          {"reference": "bind-libs"},
          {"reference": "bind-libs-lite"},
          {"reference": "bind-license"},
          {"reference": "bind-lite-devel"},
          {"reference": "bind-pkcs11"},
          {"reference": "bind-pkcs11-devel"},
          {"reference": "bind-pkcs11-libs"},
          {"reference": "bind-pkcs11-utils"},
          {"reference": "bind-sdb"},
          {"reference": "bind-sdb-chroot"},
          {"reference": "bind-utils"},
          {"reference": "bind9.16"},
          {"reference": "bind9.16-chroot"},
          {"reference": "bind9.16-devel"},
          {"reference": "bind9.16-dnssec-utils"},
          {"reference": "bind9.16-doc"},
          {"reference": "bind9.16-libs"},
          {"reference": "bind9.16-license"},
          {"reference": "bind9.16-utils"},
          {"reference": "python3-bind"},
          {"reference": "python3-bind9.16"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "bind"},
          {"reference": "bind-chroot"},
          {"reference": "bind-devel"},
          {"reference": "bind-dnssec-doc"},
          {"reference": "bind-dnssec-utils"},
          {"reference": "bind-doc"},
          {"reference": "bind-libs"},
          {"reference": "bind-license"},
          {"reference": "bind-utils"},
          {"reference": "bind9.18"},
          {"reference": "bind9.18-chroot"},
          {"reference": "bind9.18-devel"},
          {"reference": "bind9.18-dnssec-utils"},
          {"reference": "bind9.18-doc"},
          {"reference": "bind9.18-libs"},
          {"reference": "bind9.18-utils"},
          {"reference": "dhcp"},
          {"reference": "dhcp-client"},
          {"reference": "dhcp-common"},
          {"reference": "dhcp-relay"},
          {"reference": "dhcp-server"},
          {"reference": "python3-bind"}
        ]
      }
    ]
  }
};

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 third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

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');
}