NVIDIA Virtual GPU Manager for Linux DoS (September 2026)

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

include('compat.inc');

if (description)
{
  script_id(362646);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/02");

  script_cve_id("CVE-2026-47562", "CVE-2026-47568");
  script_xref(name:"IAVA", value:"2026-A-1071");

  script_name(english:"NVIDIA Virtual GPU Manager for Linux DoS (September 2026)");

  script_set_attribute(attribute:"synopsis", value:
"A GPU virtualization application installed on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The NVIDIA Virtual GPU Manager software on the remote host is missing a security update. It is, therefore, affected by
multiple vulnerabilities, including the following:

  - NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where a user could
  cause uncontrolled kernel log generation by repeatedly invoking an interface that emits unrate-limited error
  messages. A successful exploit of this vulnerability might lead to denial of service. (CVE-2026-47568)

  - NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where a user could
  inject crafted text into the kernel log because the supplied version string is not properly sanitized. A
  successful exploit of this vulnerability might lead to denial of service and data tampering. (CVE-2026-47562)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported
version number.");
  script_set_attribute(attribute:"see_also", value:"https://nvidia.custhelp.com/app/answers/detail/a_id/5861");
  script_set_attribute(attribute:"see_also", value:"https://github.com/NVIDIA/product-security/blob/main/2026/5861/5861.md");
  script_set_attribute(attribute:"solution", value:
"Upgrade the NVIDIA vGPU Manager software in accordance with the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-47568");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:nvidia:virtual_gpu_manager");
  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("nvidia_vgpu_manager_installed.nbin");
  script_require_keys("installed_sw/NVIDIA Virtual GPU Manager");

  exit(0);
}

include('vdf.inc');

# Only the Linux hypervisor host branches (XenServer, VMware vSphere, Red Hat Enterprise Linux KVM,
# Ubuntu) are listed as affected for these CVEs. The vendor lists each branch as affected "prior to
# and including" the listed build and names the updated builds (vGPU 19.6 = 580.178.05, vGPU 20.2 =
# 595.91.04), so each branch keeps max_version and names the fix in fixed_display.
# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'NVIDIA Virtual GPU Manager', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '580', 'max_version': '580.159.01', 'fixed_display': '19.6 (580.178.05)'},
        {'min_version': '595', 'max_version': '595.71.03', 'fixed_display': '20.2 (595.91.04)'}
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);