Linux Distros Unpatched Vulnerability : CVE-2026-1489

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

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  script_id(296897);
  script_version("1.12");
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  script_cve_id("CVE-2026-1489");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-1489");

  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 found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation
    can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an
    attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could
    cause applications utilizing GLib for string conversion to crash or become unstable. (CVE-2026-1489)

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-2026-1489");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-1489");
  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:M/Au:N/C:N/I:P/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:R/S:U/C:N/I:L/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-2026-1489");

  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:"plugin_publication_date", value:"2026/01/27");

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  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-7", "Host/OS/CentOS Linux-8", "Host/OS/Red Hat Enterprise Linux-10", "Host/OS/Red Hat Enterprise Linux-6", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Red Hat Enterprise Linux-9", "Host/OS/Ubuntu Linux-14.04", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04");

  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 = {
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "libgio-fam"},
          {"reference": "libglib2.0-0"},
          {"reference": "libglib2.0-0-dbg"},
          {"reference": "libglib2.0-0-refdbg"},
          {"reference": "libglib2.0-bin"},
          {"reference": "libglib2.0-data"},
          {"reference": "libglib2.0-dev"},
          {"reference": "libglib2.0-doc"},
          {"reference": "libglib2.0-tests"},
          {"reference": "libglib2.0-udeb"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "libgio-fam"},
          {"reference": "libglib2.0-0"},
          {"reference": "libglib2.0-0-dbg"},
          {"reference": "libglib2.0-0-refdbg"},
          {"reference": "libglib2.0-bin"},
          {"reference": "libglib2.0-data"},
          {"reference": "libglib2.0-dev"},
          {"reference": "libglib2.0-doc"},
          {"reference": "libglib2.0-tests"},
          {"reference": "libglib2.0-udeb"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "libgio-fam"},
          {"reference": "libglib2.0-0"},
          {"reference": "libglib2.0-bin"},
          {"reference": "libglib2.0-data"},
          {"reference": "libglib2.0-dev"},
          {"reference": "libglib2.0-dev-bin"},
          {"reference": "libglib2.0-doc"},
          {"reference": "libglib2.0-tests"},
          {"reference": "libglib2.0-udeb"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "libgio-fam"},
          {"reference": "libglib2.0-0"},
          {"reference": "libglib2.0-bin"},
          {"reference": "libglib2.0-data"},
          {"reference": "libglib2.0-dev"},
          {"reference": "libglib2.0-dev-bin"},
          {"reference": "libglib2.0-doc"},
          {"reference": "libglib2.0-tests"},
          {"reference": "libglib2.0-udeb"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "bootc"},
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"},
          {"reference": "glycin-loaders"},
          {"reference": "loupe"},
          {"reference": "mingw32-glib2"},
          {"reference": "mingw32-glib2-static"},
          {"reference": "mingw64-glib2"},
          {"reference": "mingw64-glib2-static"},
          {"reference": "papers"},
          {"reference": "papers-devel"},
          {"reference": "papers-libs"},
          {"reference": "papers-nautilus"},
          {"reference": "papers-previewer"},
          {"reference": "papers-thumbnailer"},
          {"reference": "rpm-ostree"},
          {"reference": "rpm-ostree-libs"},
          {"reference": "system-reinstall-bootc"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-static"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-fam"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"}
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      }
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  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-fam"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"}
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      }
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  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-fam"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"},
          {"reference": "librsvg2"},
          {"reference": "librsvg2-devel"},
          {"reference": "librsvg2-tools"},
          {"reference": "mingw-glib2"},
          {"reference": "mingw32-glib2"},
          {"reference": "mingw32-glib2-static"},
          {"reference": "mingw64-glib2"},
          {"reference": "mingw64-glib2-static"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-fam"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"},
          {"reference": "librsvg2"},
          {"reference": "librsvg2-devel"},
          {"reference": "librsvg2-tools"},
          {"reference": "mingw-glib2"},
          {"reference": "mingw32-glib2"},
          {"reference": "mingw32-glib2-static"},
          {"reference": "mingw64-glib2"},
          {"reference": "mingw64-glib2-static"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "bootc"},
          {"reference": "glib2"},
          {"reference": "glib2-devel"},
          {"reference": "glib2-doc"},
          {"reference": "glib2-static"},
          {"reference": "glib2-tests"},
          {"reference": "librsvg2"},
          {"reference": "librsvg2-devel"},
          {"reference": "librsvg2-tools"},
          {"reference": "mingw-glib2"},
          {"reference": "mingw32-glib2"},
          {"reference": "mingw32-glib2-static"},
          {"reference": "mingw64-glib2"},
          {"reference": "mingw64-glib2-static"},
          {"reference": "system-reinstall-bootc"}
        ]
      }
    ]
  }
};

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');
}