Linux Distros Unpatched Vulnerability : CVE-2026-47057

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

include('compat.inc');

if (description)
{
  script_id(329662);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/25");

  script_cve_id("CVE-2026-47057");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-47057");

  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.

  - Vulnerability in Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle
    Java SE: 8u491, 8u491-perf and 11.0.31. Easily exploitable vulnerability allows unauthenticated attacker
    with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this
    vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete
    DOS) of Oracle Java SE. Note: This vulnerability can be exploited by using APIs in the specified
    Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to
    Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java
    applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java
    sandbox for security. (CVE-2026-47057)

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-2026-47057");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-47057");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-47057");
  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: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:N/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-2026-47057");

  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:"2026/07/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
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  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:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-16");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-17-crac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-18");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-25");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:java-1.8.0-ibm");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:java-1.8.0-ibm-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:java-1.8.0-ibm-jdbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:java-1.8.0-ibm-plugin");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:java-1.8.0-ibm-webstart");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openjdk-11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:java-1.8.0-ibm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:java-1.8.0-ibm-demo");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:java-1.8.0-ibm-headless");
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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");
  script_require_ports("Host/OS/CentOS Linux-8", "Host/OS/Debian Linux-11", "Host/OS/Red Hat Enterprise Linux-8", "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-26.04");

  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": "openjdk-11-dbg"},
          {"reference": "openjdk-11-demo"},
          {"reference": "openjdk-11-doc"},
          {"reference": "openjdk-11-jdk"},
          {"reference": "openjdk-11-jdk-headless"},
          {"reference": "openjdk-11-jre"},
          {"reference": "openjdk-11-jre-headless"},
          {"reference": "openjdk-11-jre-zero"},
          {"reference": "openjdk-11-source"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "openjdk-8-dbg"},
          {"reference": "openjdk-8-demo"},
          {"reference": "openjdk-8-doc"},
          {"reference": "openjdk-8-jdk"},
          {"reference": "openjdk-8-jdk-headless"},
          {"reference": "openjdk-8-jre"},
          {"reference": "openjdk-8-jre-headless"},
          {"reference": "openjdk-8-jre-jamvm"},
          {"reference": "openjdk-8-jre-zero"},
          {"reference": "openjdk-8-source"},
          {"reference": "openjdk-9"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "openjdk-11-dbg"},
          {"reference": "openjdk-11-demo"},
          {"reference": "openjdk-11-doc"},
          {"reference": "openjdk-11-jdk"},
          {"reference": "openjdk-11-jdk-headless"},
          {"reference": "openjdk-11-jre"},
          {"reference": "openjdk-11-jre-headless"},
          {"reference": "openjdk-11-jre-zero"},
          {"reference": "openjdk-11-source"},
          {"reference": "openjdk-17"},
          {"reference": "openjdk-8"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "openjdk-11-dbg"},
          {"reference": "openjdk-11-demo"},
          {"reference": "openjdk-11-doc"},
          {"reference": "openjdk-11-jdk"},
          {"reference": "openjdk-11-jdk-headless"},
          {"reference": "openjdk-11-jre"},
          {"reference": "openjdk-11-jre-headless"},
          {"reference": "openjdk-11-jre-zero"},
          {"reference": "openjdk-11-source"},
          {"reference": "openjdk-13"},
          {"reference": "openjdk-16"},
          {"reference": "openjdk-17"},
          {"reference": "openjdk-21"},
          {"reference": "openjdk-8"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "openjdk-11-dbg"},
          {"reference": "openjdk-11-demo"},
          {"reference": "openjdk-11-doc"},
          {"reference": "openjdk-11-jdk"},
          {"reference": "openjdk-11-jdk-headless"},
          {"reference": "openjdk-11-jre"},
          {"reference": "openjdk-11-jre-headless"},
          {"reference": "openjdk-11-jre-zero"},
          {"reference": "openjdk-11-source"},
          {"reference": "openjdk-17"},
          {"reference": "openjdk-18"},
          {"reference": "openjdk-21"},
          {"reference": "openjdk-25"},
          {"reference": "openjdk-8"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "openjdk-17-dbg"},
          {"reference": "openjdk-17-demo"},
          {"reference": "openjdk-17-doc"},
          {"reference": "openjdk-17-jdk"},
          {"reference": "openjdk-17-jdk-headless"},
          {"reference": "openjdk-17-jre"},
          {"reference": "openjdk-17-jre-headless"},
          {"reference": "openjdk-17-jre-zero"},
          {"reference": "openjdk-17-source"},
          {"reference": "openjdk-21-dbg"},
          {"reference": "openjdk-21-demo"},
          {"reference": "openjdk-21-doc"},
          {"reference": "openjdk-21-jdk"},
          {"reference": "openjdk-21-jdk-headless"},
          {"reference": "openjdk-21-jre"},
          {"reference": "openjdk-21-jre-headless"},
          {"reference": "openjdk-21-jre-zero"},
          {"reference": "openjdk-21-source"},
          {"reference": "openjdk-21-testsupport"},
          {"reference": "openjdk-25"},
          {"reference": "openjdk-8"},
          {"reference": "openjdk-lts"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "openjdk-17"},
          {"reference": "openjdk-17-crac"},
          {"reference": "openjdk-21"},
          {"reference": "openjdk-21-crac"},
          {"reference": "openjdk-25-dbg"},
          {"reference": "openjdk-25-demo"},
          {"reference": "openjdk-25-doc"},
          {"reference": "openjdk-25-jdk"},
          {"reference": "openjdk-25-jdk-headless"},
          {"reference": "openjdk-25-jre"},
          {"reference": "openjdk-25-jre-headless"},
          {"reference": "openjdk-25-jre-zero"},
          {"reference": "openjdk-25-jvmci-jdk"},
          {"reference": "openjdk-25-source"},
          {"reference": "openjdk-25-testsupport"},
          {"reference": "openjdk-8"},
          {"reference": "openjdk-lts"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "java-1.8.0-ibm"},
          {"reference": "java-1.8.0-ibm-demo"},
          {"reference": "java-1.8.0-ibm-devel"},
          {"reference": "java-1.8.0-ibm-headless"},
          {"reference": "java-1.8.0-ibm-jdbc"},
          {"reference": "java-1.8.0-ibm-plugin"},
          {"reference": "java-1.8.0-ibm-src"},
          {"reference": "java-1.8.0-ibm-webstart"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "java-1.8.0-ibm"},
          {"reference": "java-1.8.0-ibm-demo"},
          {"reference": "java-1.8.0-ibm-devel"},
          {"reference": "java-1.8.0-ibm-headless"},
          {"reference": "java-1.8.0-ibm-jdbc"},
          {"reference": "java-1.8.0-ibm-plugin"},
          {"reference": "java-1.8.0-ibm-src"},
          {"reference": "java-1.8.0-ibm-webstart"}
        ]
      }
    ]
  }
};

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');
}