Linux Distros Unpatched Vulnerability : CVE-2026-48125

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

include('compat.inc');

if (description)
{
  script_id(327207);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/16");

  script_cve_id("CVE-2026-48125");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-48125");

  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.

  - UAParser.js is a JavaScript library to detect browsers, operating systems, CPUs, and devices from user-
    agent data. From 2.0.1 until 2.0.10, a regular expression denial-of-service vulnerability exists when
    using the Client Hints API. By sending a crafted Sec-CH-UA-Model header to an application that calls
    UAParser(headers).withClientHints(), an attacker can cause excessive CPU time due to catastrophic
    backtracking in the device regex because Client Hints values are copied without the UA_MAX_LENGTH limit
    used for User-Agent values. This issue is fixed in version 2.0.10. (CVE-2026-48125)

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-2026-48125");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-48125");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-48125");
  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:N/I:N/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:N/UI:N/S:U/C:N/I:N/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-2026-48125");

  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:"2026/06/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  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:"cpe:/o:redhat:enterprise_linux:7");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:rhsm-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-cockpit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-initial-setup-addon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-migration");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-plugin-container");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-plugin-ostree");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-rhsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:subscription-manager-rhsm-certificates");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:node-ua-parser-js");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhsm-gtk");
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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/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": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "node-ua-parser-js"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "python-syspurpose"},
          {"reference": "rhsm-gtk"},
          {"reference": "subscription-manager"},
          {"reference": "subscription-manager-cockpit"},
          {"reference": "subscription-manager-gui"},
          {"reference": "subscription-manager-initial-setup-addon"},
          {"reference": "subscription-manager-migration"},
          {"reference": "subscription-manager-plugin-container"},
          {"reference": "subscription-manager-plugin-ostree"},
          {"reference": "subscription-manager-rhsm"},
          {"reference": "subscription-manager-rhsm-certificates"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "python-syspurpose"},
          {"reference": "rhsm-gtk"},
          {"reference": "subscription-manager"},
          {"reference": "subscription-manager-cockpit"},
          {"reference": "subscription-manager-gui"},
          {"reference": "subscription-manager-initial-setup-addon"},
          {"reference": "subscription-manager-migration"},
          {"reference": "subscription-manager-plugin-container"},
          {"reference": "subscription-manager-plugin-ostree"},
          {"reference": "subscription-manager-rhsm"},
          {"reference": "subscription-manager-rhsm-certificates"}
        ]
      }
    ]
  }
};

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');
}