Linux Distros Unpatched Vulnerability : CVE-2026-107823

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

include('compat.inc');

if (description)
{
  script_id(364510);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/10");

  script_cve_id("CVE-2026-107823");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-107823");

  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.

  - MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19,
    11.4.13, 11.8.9, 12.3.3, and 13.0.2, the MariaDB view FRM parser did not safely encode embedded newline
    characters in a username. An account with CREATE USER and CREATE VIEW WITH GRANT OPTION could create a
    crafted username containing additional view metadata, causing the parser to interpret part of the username
    as security metadata and potentially escalating database privileges. This issue is fixed in versions
    10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. (CVE-2026-107823)

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-2026-107823");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-107823");
  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:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/UI:N/S:U/C:H/I:H/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-2026-107823");

  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:"2026/09/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
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  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
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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:centos:centos:Judy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:galera");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb-embedded");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb-errmsg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb-gssapi-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb-oqgraph-engine");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-embedded-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-errmsg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-gssapi-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-oqgraph-engine");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-pam");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-server-galera");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-server-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mariadb11.8-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mariadb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:Judy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:galera");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 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-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");

  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-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "libmariadb-dev"},
          {"reference": "libmariadb-dev-compat"},
          {"reference": "libmariadb3"},
          {"reference": "libmariadbd-dev"},
          {"reference": "libmariadbd19"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-client"},
          {"reference": "mariadb-client-core"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-plugin-connect"},
          {"reference": "mariadb-plugin-cracklib-password-check"},
          {"reference": "mariadb-plugin-gssapi-client"},
          {"reference": "mariadb-plugin-gssapi-server"},
          {"reference": "mariadb-plugin-hashicorp-key-management"},
          {"reference": "mariadb-plugin-mroonga"},
          {"reference": "mariadb-plugin-oqgraph"},
          {"reference": "mariadb-plugin-provider-bzip2"},
          {"reference": "mariadb-plugin-provider-lz4"},
          {"reference": "mariadb-plugin-provider-lzma"},
          {"reference": "mariadb-plugin-provider-lzo"},
          {"reference": "mariadb-plugin-provider-snappy"},
          {"reference": "mariadb-plugin-rocksdb"},
          {"reference": "mariadb-plugin-s3"},
          {"reference": "mariadb-plugin-spider"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-10.5"},
          {"reference": "mariadb-server-core"},
          {"reference": "mariadb-test"},
          {"reference": "mariadb-test-data"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "libmariadb-dev"},
          {"reference": "libmariadb-dev-compat"},
          {"reference": "libmariadb3"},
          {"reference": "libmariadbd-dev"},
          {"reference": "libmariadbd19t64"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-client"},
          {"reference": "mariadb-client-compat"},
          {"reference": "mariadb-client-core"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-plugin-connect"},
          {"reference": "mariadb-plugin-connect-jdbc"},
          {"reference": "mariadb-plugin-cracklib-password-check"},
          {"reference": "mariadb-plugin-gssapi-client"},
          {"reference": "mariadb-plugin-gssapi-server"},
          {"reference": "mariadb-plugin-hashicorp-key-management"},
          {"reference": "mariadb-plugin-mroonga"},
          {"reference": "mariadb-plugin-oqgraph"},
          {"reference": "mariadb-plugin-provider-bzip2"},
          {"reference": "mariadb-plugin-provider-lz4"},
          {"reference": "mariadb-plugin-provider-lzma"},
          {"reference": "mariadb-plugin-provider-lzo"},
          {"reference": "mariadb-plugin-provider-snappy"},
          {"reference": "mariadb-plugin-rocksdb"},
          {"reference": "mariadb-plugin-s3"},
          {"reference": "mariadb-plugin-spider"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-10.5"},
          {"reference": "mariadb-server-compat"},
          {"reference": "mariadb-server-core"},
          {"reference": "mariadb-test"},
          {"reference": "mariadb-test-data"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "mariadb"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-client-utils"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-errmsg"},
          {"reference": "mariadb-gssapi-server"},
          {"reference": "mariadb-oqgraph-engine"},
          {"reference": "mariadb-pam"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-galera"},
          {"reference": "mariadb-server-utils"},
          {"reference": "mariadb-test"},
          {"reference": "mariadb10.11"},
          {"reference": "mariadb11.8"},
          {"reference": "mariadb11.8-backup"},
          {"reference": "mariadb11.8-client-utils"},
          {"reference": "mariadb11.8-common"},
          {"reference": "mariadb11.8-devel"},
          {"reference": "mariadb11.8-embedded"},
          {"reference": "mariadb11.8-embedded-devel"},
          {"reference": "mariadb11.8-errmsg"},
          {"reference": "mariadb11.8-gssapi-server"},
          {"reference": "mariadb11.8-oqgraph-engine"},
          {"reference": "mariadb11.8-pam"},
          {"reference": "mariadb11.8-server"},
          {"reference": "mariadb11.8-server-galera"},
          {"reference": "mariadb11.8-server-utils"},
          {"reference": "mariadb11.8-test"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "mariadb"},
          {"reference": "mariadb-bench"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-libs"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-test"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "mariadb"},
          {"reference": "mariadb-bench"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-libs"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-test"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "Judy"},
          {"reference": "galera"},
          {"reference": "mariadb"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-errmsg"},
          {"reference": "mariadb-gssapi-server"},
          {"reference": "mariadb-oqgraph-engine"},
          {"reference": "mariadb-pam"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-galera"},
          {"reference": "mariadb-server-utils"},
          {"reference": "mariadb-test"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "Judy"},
          {"reference": "galera"},
          {"reference": "mariadb"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-errmsg"},
          {"reference": "mariadb-gssapi-server"},
          {"reference": "mariadb-oqgraph-engine"},
          {"reference": "mariadb-pam"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-galera"},
          {"reference": "mariadb-server-utils"},
          {"reference": "mariadb-test"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "mariadb"},
          {"reference": "mariadb-backup"},
          {"reference": "mariadb-common"},
          {"reference": "mariadb-devel"},
          {"reference": "mariadb-embedded"},
          {"reference": "mariadb-embedded-devel"},
          {"reference": "mariadb-errmsg"},
          {"reference": "mariadb-gssapi-server"},
          {"reference": "mariadb-oqgraph-engine"},
          {"reference": "mariadb-pam"},
          {"reference": "mariadb-server"},
          {"reference": "mariadb-server-galera"},
          {"reference": "mariadb-server-utils"},
          {"reference": "mariadb-test"}
        ]
      }
    ]
  }
};

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');
}