Mozilla Thunderbird < 155.0

#%NASL_MIN_LEVEL 80900
## 
# (C) Tenable, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2026-86.
# The text itself is copyright (C) Mozilla Foundation.
## 

include('compat.inc');

if (description)
{
  script_id(342261);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/01");

  script_cve_id(
    "CVE-2026-84118",
    "CVE-2026-84119",
    "CVE-2026-84120",
    "CVE-2026-84121",
    "CVE-2026-84122",
    "CVE-2026-84123",
    "CVE-2026-84124",
    "CVE-2026-84125",
    "CVE-2026-84126",
    "CVE-2026-84128",
    "CVE-2026-84129",
    "CVE-2026-84130",
    "CVE-2026-84131",
    "CVE-2026-84132",
    "CVE-2026-84133",
    "CVE-2026-84134",
    "CVE-2026-84136",
    "CVE-2026-84137",
    "CVE-2026-84138",
    "CVE-2026-84139",
    "CVE-2026-84140",
    "CVE-2026-84141",
    "CVE-2026-84142",
    "CVE-2026-84143",
    "CVE-2026-84144",
    "CVE-2026-84145",
    "CVE-2026-84639",
    "CVE-2026-84640",
    "CVE-2026-84641",
    "CVE-2026-84642"
  );

  script_name(english:"Mozilla Thunderbird < 155.0");

  script_set_attribute(attribute:"synopsis", value:
"A mail client installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 155.0. It is, therefore, affected
by multiple vulnerabilities as referenced in the mfsa2026-86 advisory.

  - Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in
    Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird
    140.15, and Thunderbird 153.2. (CVE-2026-84131)

  - Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in
    Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird
    140.15, and Thunderbird 153.2. (CVE-2026-84121)

  - Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used.
    (CVE-2026-84639)

  - A maliciously constructed mail header could lead to a one byte read past the end of a buffer.
    (CVE-2026-84640)

  - A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID
    response. Heap contents can ultimately be persisted to prefs.js. (CVE-2026-84641)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2026-86/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Thunderbird version 155.0 or later.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-2026-84131");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-84121");

  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:"2026/09/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:thunderbird");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

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

  script_dependencies("macosx_thunderbird_installed.nasl");
  script_require_keys("installed_sw/Mozilla Thunderbird");

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "requires": [
    {
      "scope": "target",
      "match": {
        "os": "macos"
      }
    }
  ],
  "checks": [
    {
      "product": {
        "name": "Mozilla Thunderbird",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "fixed_version": "155.0"
        }
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);