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Mozilla Thunderbird Security Advisories (MFSA2021-37, MFSA2021-41) -01 - Mac OS X

🗓️ 09 Sep 2021 00:00:00Reported by Copyright (C) 2021 Greenbone AGType 
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This host is missing a security update for Mozilla Thunderbird version before 91.1 on Mac OS X. Successful exploitation will allow attackers to run arbitrary code on the affected system. Upgrade to Mozilla Thunderbird version 91.1 or later. Please see the references for more information

Related
Refs
Code
# 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("1.3.6.1.4.1.25623.1.0.818520");
  script_version("2025-09-12T05:38:45+0000");
  script_cve_id("CVE-2021-38495");
  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:"2021-11-04 20:46:00 +0000 (Thu, 04 Nov 2021)");
  script_tag(name:"creation_date", value:"2021-09-09 00:46:50 +0530 (Thu, 09 Sep 2021)");
  script_name("Mozilla Thunderbird Security Advisories (MFSA2021-37, MFSA2021-41) -01 - Mac OS X");

  script_tag(name:"summary", value:"This host is missing a security update
  according to Mozilla.");

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

  script_tag(name:"insight", value:"The flaw is due to memory safety bugs.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to run arbitrary code on affected system.");

  script_tag(name:"affected", value:"Mozilla Thunderbird version before
  91.1 on Mac OS X.");

  script_tag(name:"solution", value:"Upgrade to Mozilla Thunderbird version 91.1
  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/mfsa2021-41/");
  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("Thunderbird/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);

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

if(version_in_range(version:vers, test_version:"91.0", test_version2:"91.0.3")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"91.1", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);

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12 Sep 2025 00:00Current
8.6High risk
Vulners AI Score8.6
CVSS 26.8
CVSS 3.18.8
EPSS0.01107
16