Linux Distros Unpatched Vulnerability : CVE-2026-25965

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

include('compat.inc');

if (description)
{
  script_id(299855);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/08");

  script_cve_id("CVE-2026-25965");
  script_xref(name:"IAVB", value:"2026-B-0051-S");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-25965");

  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.

  - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to
    versions 7.1.2-15 and 6.9.13-40, ImageMagick's path security policy is enforced on the raw filename string
    before the filesystem resolves it. As a result, a policy rule such as /etc/* can be bypassed by a path
    traversal. The OS resolves the traversal and opens the sensitive file, but the policy matcher only sees
    the unnormalized path and therefore allows the read. This enables local file disclosure (LFI) even when
    policy-secure.xml is applied. Actions to prevent reading from files have been taken in versions .7.1.2-15
    and 6.9.13-40 But it make sure writing is also not possible the following should be added to one's policy.
    This will also be included in ImageMagick's more secure policies by default. (CVE-2026-25965)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-25965");
  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:N/A:N");
  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:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-25965");

  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:"2026/02/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  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:25.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:imagemagick");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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/Ubuntu Linux-14.04", "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-25.10");

  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 = {
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "imagemagick"},
          {"reference": "imagemagick-common"},
          {"reference": "imagemagick-dbg"},
          {"reference": "imagemagick-doc"},
          {"reference": "libmagick++-dev"},
          {"reference": "libmagick++5"},
          {"reference": "libmagickcore-dev"},
          {"reference": "libmagickcore5"},
          {"reference": "libmagickcore5-extra"},
          {"reference": "libmagickwand-dev"},
          {"reference": "libmagickwand5"},
          {"reference": "perlmagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "imagemagick"},
          {"reference": "imagemagick-6.q16"},
          {"reference": "imagemagick-common"},
          {"reference": "imagemagick-dbg"},
          {"reference": "imagemagick-doc"},
          {"reference": "libimage-magick-perl"},
          {"reference": "libimage-magick-q16-perl"},
          {"reference": "libmagick++-6-headers"},
          {"reference": "libmagick++-6.q16-5v5"},
          {"reference": "libmagick++-6.q16-dev"},
          {"reference": "libmagick++-dev"},
          {"reference": "libmagickcore-6-arch-config"},
          {"reference": "libmagickcore-6-headers"},
          {"reference": "libmagickcore-6.q16-2"},
          {"reference": "libmagickcore-6.q16-2-extra"},
          {"reference": "libmagickcore-6.q16-dev"},
          {"reference": "libmagickcore-dev"},
          {"reference": "libmagickwand-6-headers"},
          {"reference": "libmagickwand-6.q16-2"},
          {"reference": "libmagickwand-6.q16-dev"},
          {"reference": "libmagickwand-dev"},
          {"reference": "perlmagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "imagemagick"},
          {"reference": "imagemagick-6-common"},
          {"reference": "imagemagick-6-doc"},
          {"reference": "imagemagick-6.q16"},
          {"reference": "imagemagick-6.q16hdri"},
          {"reference": "imagemagick-common"},
          {"reference": "imagemagick-doc"},
          {"reference": "libimage-magick-perl"},
          {"reference": "libimage-magick-q16-perl"},
          {"reference": "libimage-magick-q16hdri-perl"},
          {"reference": "libmagick++-6-headers"},
          {"reference": "libmagick++-6.q16-7"},
          {"reference": "libmagick++-6.q16-dev"},
          {"reference": "libmagick++-6.q16hdri-7"},
          {"reference": "libmagick++-6.q16hdri-dev"},
          {"reference": "libmagick++-dev"},
          {"reference": "libmagickcore-6-arch-config"},
          {"reference": "libmagickcore-6-headers"},
          {"reference": "libmagickcore-6.q16-3"},
          {"reference": "libmagickcore-6.q16-3-extra"},
          {"reference": "libmagickcore-6.q16-dev"},
          {"reference": "libmagickcore-6.q16hdri-3"},
          {"reference": "libmagickcore-6.q16hdri-3-extra"},
          {"reference": "libmagickcore-6.q16hdri-dev"},
          {"reference": "libmagickcore-dev"},
          {"reference": "libmagickwand-6-headers"},
          {"reference": "libmagickwand-6.q16-3"},
          {"reference": "libmagickwand-6.q16-dev"},
          {"reference": "libmagickwand-6.q16hdri-3"},
          {"reference": "libmagickwand-6.q16hdri-dev"},
          {"reference": "libmagickwand-dev"},
          {"reference": "perlmagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "imagemagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "imagemagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "imagemagick"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "imagemagick"}
        ]
      }
    ]
  }
};

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');
}