Mozilla Thunderbird Security Advisories (MFSA2021-50, MFSA2021-54) - Windows

# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:mozilla:thunderbird";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.818876");
  script_version("2025-09-12T05:38:45+0000");
  script_cve_id("CVE-2021-43528", "CVE-2021-43546", "CVE-2021-43545", "CVE-2021-43543",
                "CVE-2021-43542", "CVE-2021-43541", "CVE-2021-43539", "CVE-2021-43538",
                "CVE-2021-43537", "CVE-2021-43536");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2025-09-12 05:38:45 +0000 (Fri, 12 Sep 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-12-10 16:44:00 +0000 (Fri, 10 Dec 2021)");
  script_tag(name:"creation_date", value:"2021-12-12 23:23:38 +0530 (Sun, 12 Dec 2021)");
  script_name("Mozilla Thunderbird Security Advisories (MFSA2021-50, MFSA2021-54) - Windows");

  script_tag(name:"summary", value:"Mozilla Thunderbird is prone to multiple
  vulnerabilities.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present
  on the target host.");

  script_tag(name:"insight", value:"Multiple flaws exist due to:

  - URL leakage when navigating while executing asynchronous function.

  - Heap buffer overflow when using structured clone.

  - Missing fullscreen and pointer lock notification when requesting both.

  - GC rooting failure when calling wasm instance methods.

  - External protocol handler parameters were unescaped

  - XMLHttpRequest error codes could have leaked the existence of an external protocol handler.

  - Bypass of CSP sandbox directive when embedding.

  - Denial of Service when using the Location API in a loop.

  - Cursor spoofing could overlay user interface when native cursor is zoomed.

  - JavaScript unexpectedly enabled for the composition area.

  - Memory safety bugs.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to run arbitrary code, bypass security restrictions, conduct spoofing
  and cause a denial of service on affected system.");

  script_tag(name:"affected", value:"Mozilla Thunderbird version before
  91.4 on Windows.");

  script_tag(name:"solution", value:"Upgrade to Mozilla Thunderbird version 91.4
  or later. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"registry");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2021-54/");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("General");
  script_dependencies("gb_thunderbird_detect_win.nasl");
  script_mandatory_keys("Thunderbird/Win/Ver");
  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if(!infos = get_app_version_and_location(cpe:CPE, exit_no_version:TRUE))
  exit(0);

vers = infos["version"];
path = infos["location"];

if(version_is_less(version:vers, test_version:"91.4")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"91.4", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);