Linux Distros Unpatched Vulnerability : CVE-2026-0719

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

include('compat.inc');

if (description)
{
  script_id(282481);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/21");

  script_cve_id("CVE-2026-0719");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-0719");

  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 flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and
    other applications for network communication. When processing extremely long passwords, an internal size
    calculation can overflow due to improper use of signed integers. This results in incorrect memory
    allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may
    crash unexpectedly, creating a denial-of-service risk. (CVE-2026-0719)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-0719");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-0719");
  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:L/I:L/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-2026-0719");

  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:"2026/01/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  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:25.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  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:"p-cpe:/a:canonical:ubuntu_linux:libsoup2.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsoup3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsoup2.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsoup3");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  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/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "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-25.04", "Host/OS/Ubuntu Linux-25.10");

  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/Debian/dpkg-l"))) 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": "gir1.2-soup-2.4"},
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-2.4-1"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"},
          {"reference": "libsoup-gnome-2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-2.4-1"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"},
          {"reference": "libsoup-gnome-2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-2.4-1"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"},
          {"reference": "libsoup-gnome-2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-2.4-1"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"},
          {"reference": "libsoup-gnome-2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "gir1.2-soup-3.0"},
          {"reference": "libsoup-3.0-0"},
          {"reference": "libsoup-3.0-common"},
          {"reference": "libsoup-3.0-dev"},
          {"reference": "libsoup-3.0-doc"},
          {"reference": "libsoup-3.0-tests"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-dbg"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "gir1.2-soup-2.4"},
          {"reference": "libsoup-gnome2.4-1"},
          {"reference": "libsoup-gnome2.4-dev"},
          {"reference": "libsoup2.4-1"},
          {"reference": "libsoup2.4-common"},
          {"reference": "libsoup2.4-dev"},
          {"reference": "libsoup2.4-doc"},
          {"reference": "libsoup2.4-tests"},
          {"reference": "libsoup3"}
        ]
      }
    ]
  }
};

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 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');
}