Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-11.0.1.8)

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

include('compat.inc');

if (description)
{
  script_id(339446);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/25");

  script_cve_id(
    "CVE-2024-34459",
    "CVE-2025-10911",
    "CVE-2026-2291",
    "CVE-2026-3833",
    "CVE-2026-4890",
    "CVE-2026-4891",
    "CVE-2026-4892",
    "CVE-2026-4893",
    "CVE-2026-5260",
    "CVE-2026-5419",
    "CVE-2026-5450",
    "CVE-2026-31790",
    "CVE-2026-33845",
    "CVE-2026-33846",
    "CVE-2026-34982",
    "CVE-2026-35177",
    "CVE-2026-41316",
    "CVE-2026-41411",
    "CVE-2026-42009",
    "CVE-2026-42010",
    "CVE-2026-42011",
    "CVE-2026-42012",
    "CVE-2026-42013",
    "CVE-2026-42014",
    "CVE-2026-42015",
    "CVE-2026-42246",
    "CVE-2026-42258",
    "CVE-2026-46483"
  );

  script_name(english:"Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-11.0.1.8)");

  script_set_attribute(attribute:"synopsis", value:
"The Nutanix AHV host is affected by multiple vulnerabilities .");
  script_set_attribute(attribute:"description", value:
"The version of AHV installed on the remote host is prior to 11.0.1.8. It is, therefore, affected by multiple
vulnerabilities as referenced in the NXSA-AHV-11.0.1.8 advisory.

  - A flaw was found in gnutls. Servers configured with RSA-PSK (RivestShamirAdleman  Pre-Shared Key)
    wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could
    exploit this by sending a specially crafted username, leading to an authentication bypass. This
    vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.
    (CVE-2026-42010)

  - Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send
    contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer
    might contain sensitive data from the previous execution of the application process which leads to
    sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success
    and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA
    encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave
    the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If
    applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key
    without first validating that key, then this may cause stale or uninitialized contents of the caller-
    provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround
    calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will
    mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.
    (CVE-2026-31790)

  - Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version
    2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in
    a one byte heap buffer overflow. (CVE-2026-5450)

  - An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error
    messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.
    (CVE-2024-34459)

  - A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset,
    leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is
    remotely exploitable and may cause information disclosure or denial of service. (CVE-2026-33845)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://portal.nutanix.com/page/documents/security-advisories/release-advisories/details?id=NXSA-AHV-11.0.1.8
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?32fb71ea");
  script_set_attribute(attribute:"solution", value:
"Update the Nutanix AHV software to the recommended version. Before upgrading: if this cluster is registered with Prism
Central, ensure that Prism Central has been upgraded first to a compatible version. Refer to the Software Product
Interoperability page on the Nutanix portal.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-42010");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-42246");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/12/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:nutanix:ahv");
  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("nutanix_collect.nasl");
  script_require_keys("Host/Nutanix/Data/Node/Version", "Host/Nutanix/Data/Node/Type");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

var app_info = vcf::nutanix::get_app_info(node:TRUE);

var constraints = [
  { 'min_version' : '11.0', 'fixed_version' : '11.0.1.8', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.102001', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.102005', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103003', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103014', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103032', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103053', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103068', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103072', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103084', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103087', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' },
  { 'fixed_version' : '11.0.1.8', 'equal' : '20230302.103100', 'product' : 'AHV', 'fixed_display' : 'Upgrade the AHV install to 11.0.1.8 or higher.' }
];

vcf::nutanix::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);