MariaDB 11.8.1 < 11.8.6 DoS

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

include('compat.inc');

if (description)
{
  script_id(305874);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/13");

  script_cve_id("CVE-2026-32710");
  script_xref(name:"IAVA", value:"2026-A-0287");

  script_name(english:"MariaDB 11.8.1 < 11.8.6 DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of MariaDB installed on the remote host is prior to 11.8.6. It is, therefore, affected by a vulnerability
as referenced in the GHSA-4rj5-2227-9wgc advisory.

  - MariaDB server is a community developed fork of MySQL server. An authenticated user can crash MariaDB
    versions 11.4 before 11.4.10 and 11.8 before 11.8.6 via a bug in JSON_SCHEMA_VALID() function. Under
    certain conditions it might be possible to turn the crash into a remote code execution. These conditions
    require tight control over memory layout which is generally only attainable in a lab environment. This
    issue is fixed in MariaDB 11.4.10, MariaDB 11.8.6, and MariaDB 12.2.2. (CVE-2026-32710)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/MariaDB/server/security/advisories/GHSA-4rj5-2227-9wgc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?51aeba68");
  script_set_attribute(attribute:"see_also", value:"https://jira.mariadb.org/browse/MDEV-38356");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MariaDB version 11.8.6 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-32710");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/03/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/10");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mariadb:mariadb");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mysql_version.nasl", "mysql_login.nasl", "mariadb_nix_installed.nbin", "mariadb_win_installed.nbin");
  script_require_keys("installed_sw/MariaDB");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::combined_get_app_info(app:'MariaDB');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'min_version' : '11.8.1', 'fixed_version' : '11.8.6' }
];
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    require_paranoia:TRUE,
    severity:SECURITY_HOLE
);