Mozilla Firefox ESR Security Advisories (MFSA2021-02, MFSA2021-05) - Mac OS X

# 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:firefox_esr";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.817895");
  script_version("2025-09-19T15:40:40+0000");
  script_cve_id("CVE-2021-23953", "CVE-2021-23954", "CVE-2021-23964", "CVE-2021-23960",
                "CVE-2020-26976");
  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:"2025-09-19 15:40:40 +0000 (Fri, 19 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:"2021-03-03 20:58:00 +0000 (Wed, 03 Mar 2021)");
  script_tag(name:"creation_date", value:"2021-01-27 12:56:17 +0530 (Wed, 27 Jan 2021)");
  script_name("Mozilla Firefox ESR Security Advisories (MFSA2021-02, MFSA2021-05) - Mac OS X");

  script_tag(name:"summary", value:"Mozilla Firefox ESR 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:

  - Type confusion when using logical assignment operators in JavaScript switch
    statements.

  - Cross-origin information leakage via redirected PDF requests.

  - HTTPS pages could have been intercepted by a registered service worker when
    they should not have been.

  - Use-after-poison for incorrectly redeclared JavaScript variables during GC.

  - Memory safety bugs.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to run arbitrary code, cause denial of service and disclose sensitive
  information.");

  script_tag(name:"affected", value:"Mozilla Firefox ESR version before
  78.7 on Mac OS X.");

  script_tag(name:"solution", value:"Upgrade to Mozilla Firefox ESR version 78.7
  or later, Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("General");
  script_dependencies("gb_mozilla_prdts_detect_macosx.nasl");
  script_mandatory_keys("Mozilla/Firefox-ESR/MacOSX/Version");
  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 );
ffVer = infos["version"];
ffPath = infos["location"];

if(version_is_less(version:ffVer, test_version:"78.7"))
{
  report = report_fixed_ver(installed_version:ffVer, fixed_version:"78.7", install_path:ffPath);
  security_message(data:report);
  exit(0);
}