Linux Distros Unpatched Vulnerability : CVE-2026-94370

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

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if (description)
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  script_version("1.1");
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  script_cve_id("CVE-2026-94370");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-94370");

  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 defect in the Qt for MCUs core string handling causes heap memory corruption. When an application passes
    text into Qt Quick Ultralite using the public Qul::String interface type, and that text is held in a
    std::string, the conversion to the internal string type copies the pointer without taking ownership of it.
    Two objects then release the same memory, producing a double free, an invalid free, or a use-after-free.
    (CVE-2026-94370)

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-2026-94370");
  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");
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  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-94370");

  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:"2026/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/14");

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  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");
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  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/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "qt6-filesystem"},
          {"reference": "qt6-rpm-macros"},
          {"reference": "qt6-srpm-macros"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "phonon-backend-gstreamer"},
          {"reference": "qt"},
          {"reference": "qt-demos"},
          {"reference": "qt-devel"},
          {"reference": "qt-doc"},
          {"reference": "qt-examples"},
          {"reference": "qt-mysql"},
          {"reference": "qt-odbc"},
          {"reference": "qt-postgresql"},
          {"reference": "qt-sqlite"},
          {"reference": "qt-x11"},
          {"reference": "qt3"},
          {"reference": "qt3-MySQL"},
          {"reference": "qt3-ODBC"},
          {"reference": "qt3-PostgreSQL"},
          {"reference": "qt3-config"},
          {"reference": "qt3-designer"},
          {"reference": "qt3-devel"},
          {"reference": "qt3-devel-docs"},
          {"reference": "qt3-sqlite"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "qt"},
          {"reference": "qt-assistant"},
          {"reference": "qt-config"},
          {"reference": "qt-demos"},
          {"reference": "qt-devel"},
          {"reference": "qt-devel-private"},
          {"reference": "qt-doc"},
          {"reference": "qt-examples"},
          {"reference": "qt-mysql"},
          {"reference": "qt-odbc"},
          {"reference": "qt-postgresql"},
          {"reference": "qt-qdbusviewer"},
          {"reference": "qt-qvfb"},
          {"reference": "qt-x11"},
          {"reference": "qt3"},
          {"reference": "qt3-MySQL"},
          {"reference": "qt3-ODBC"},
          {"reference": "qt3-PostgreSQL"},
          {"reference": "qt3-config"},
          {"reference": "qt3-designer"},
          {"reference": "qt3-devel"},
          {"reference": "qt3-devel-docs"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "qt"},
          {"reference": "qt-assistant"},
          {"reference": "qt-config"},
          {"reference": "qt-demos"},
          {"reference": "qt-devel"},
          {"reference": "qt-devel-private"},
          {"reference": "qt-doc"},
          {"reference": "qt-examples"},
          {"reference": "qt-mysql"},
          {"reference": "qt-odbc"},
          {"reference": "qt-postgresql"},
          {"reference": "qt-qdbusviewer"},
          {"reference": "qt-qvfb"},
          {"reference": "qt-x11"},
          {"reference": "qt3"},
          {"reference": "qt3-MySQL"},
          {"reference": "qt3-ODBC"},
          {"reference": "qt3-PostgreSQL"},
          {"reference": "qt3-config"},
          {"reference": "qt3-designer"},
          {"reference": "qt3-devel"},
          {"reference": "qt3-devel-docs"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "qt5"},
          {"reference": "qt5-devel"},
          {"reference": "qt5-rpm-macros"},
          {"reference": "qt5-srpm-macros"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "qt5"},
          {"reference": "qt5-devel"},
          {"reference": "qt5-rpm-macros"},
          {"reference": "qt5-srpm-macros"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "qt5"},
          {"reference": "qt5-devel"},
          {"reference": "qt5-rpm-macros"},
          {"reference": "qt5-srpm-macros"}
        ]
      }
    ]
  }
};

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');
}