Linux Distros Unpatched Vulnerability : CVE-2026-54229

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

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  script_cve_id("CVE-2026-54229");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-54229");

  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 race condition was found in the abrt-dbus D-Bus service's ChownProblemDir method. ChownProblemDir opens
    the dump directory with DD_OPEN_READONLY and calls dd_chown to change ownership of all files to the
    caller's uid, succeeding even while post-create event handlers hold a write lock. This allows an attacker
    to gain filesystem-level control of the dump directory while privileged event scripts are still running.
    (CVE-2026-54229)

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-2026-54229");
  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:L/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
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  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-54229");

  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:"2026/06/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/13");

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  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:abrt-desktop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:abrt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:abrt-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:abrt-gui-devel");
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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-7", "Host/OS/Red Hat Enterprise Linux-8");

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}

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/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "abrt"},
          {"reference": "abrt-addon-ccpp"},
          {"reference": "abrt-addon-kerneloops"},
          {"reference": "abrt-addon-pstoreoops"},
          {"reference": "abrt-addon-python"},
          {"reference": "abrt-addon-upload-watch"},
          {"reference": "abrt-addon-vmcore"},
          {"reference": "abrt-addon-xorg"},
          {"reference": "abrt-cli"},
          {"reference": "abrt-console-notification"},
          {"reference": "abrt-dbus"},
          {"reference": "abrt-desktop"},
          {"reference": "abrt-devel"},
          {"reference": "abrt-gui"},
          {"reference": "abrt-gui-devel"},
          {"reference": "abrt-gui-libs"},
          {"reference": "abrt-libs"},
          {"reference": "abrt-python"},
          {"reference": "abrt-python-doc"},
          {"reference": "abrt-retrace-client"},
          {"reference": "abrt-tui"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "abrt"},
          {"reference": "abrt-addon-ccpp"},
          {"reference": "abrt-addon-kerneloops"},
          {"reference": "abrt-addon-pstoreoops"},
          {"reference": "abrt-addon-python"},
          {"reference": "abrt-addon-upload-watch"},
          {"reference": "abrt-addon-vmcore"},
          {"reference": "abrt-addon-xorg"},
          {"reference": "abrt-cli"},
          {"reference": "abrt-console-notification"},
          {"reference": "abrt-dbus"},
          {"reference": "abrt-desktop"},
          {"reference": "abrt-devel"},
          {"reference": "abrt-gui"},
          {"reference": "abrt-gui-devel"},
          {"reference": "abrt-gui-libs"},
          {"reference": "abrt-libs"},
          {"reference": "abrt-python"},
          {"reference": "abrt-python-doc"},
          {"reference": "abrt-retrace-client"},
          {"reference": "abrt-tui"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "abrt"},
          {"reference": "abrt-addon-ccpp"},
          {"reference": "abrt-addon-coredump-helper"},
          {"reference": "abrt-addon-kerneloops"},
          {"reference": "abrt-addon-pstoreoops"},
          {"reference": "abrt-addon-vmcore"},
          {"reference": "abrt-addon-xorg"},
          {"reference": "abrt-cli"},
          {"reference": "abrt-cli-ng"},
          {"reference": "abrt-console-notification"},
          {"reference": "abrt-dbus"},
          {"reference": "abrt-desktop"},
          {"reference": "abrt-gui"},
          {"reference": "abrt-gui-libs"},
          {"reference": "abrt-libs"},
          {"reference": "abrt-plugin-machine-id"},
          {"reference": "abrt-plugin-sosreport"},
          {"reference": "abrt-tui"},
          {"reference": "python3-abrt"},
          {"reference": "python3-abrt-addon"},
          {"reference": "python3-abrt-container-addon"},
          {"reference": "python3-abrt-doc"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "abrt"},
          {"reference": "abrt-addon-ccpp"},
          {"reference": "abrt-addon-coredump-helper"},
          {"reference": "abrt-addon-kerneloops"},
          {"reference": "abrt-addon-pstoreoops"},
          {"reference": "abrt-addon-vmcore"},
          {"reference": "abrt-addon-xorg"},
          {"reference": "abrt-cli"},
          {"reference": "abrt-cli-ng"},
          {"reference": "abrt-console-notification"},
          {"reference": "abrt-dbus"},
          {"reference": "abrt-desktop"},
          {"reference": "abrt-gui"},
          {"reference": "abrt-gui-libs"},
          {"reference": "abrt-libs"},
          {"reference": "abrt-plugin-machine-id"},
          {"reference": "abrt-plugin-sosreport"},
          {"reference": "abrt-tui"},
          {"reference": "python3-abrt"},
          {"reference": "python3-abrt-addon"},
          {"reference": "python3-abrt-container-addon"},
          {"reference": "python3-abrt-doc"}
        ]
      }
    ]
  }
};

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');
}