Mozilla Firefox < 82.0

## 
# (C) Tenable Network Security, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2020-45.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(141572);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/15");

  script_cve_id(
    "CVE-2020-15254",
    "CVE-2020-15680",
    "CVE-2020-15681",
    "CVE-2020-15682",
    "CVE-2020-15683",
    "CVE-2020-15684",
    "CVE-2020-15969"
  );
  script_xref(name:"MFSA", value:"2020-45");
  script_xref(name:"IAVA", value:"2020-A-0472-S");

  script_name(english:"Mozilla Firefox < 82.0");

  script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Firefox installed on the remote macOS or Mac OS X host is prior to 82.0. It is, therefore, affected by
multiple vulnerabilities as referenced in the mfsa2020-45 advisory.

  - Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the
    bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number
    of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The
    destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes
    described above. This is unsound and causing deallocation with the incorrect capacity when
    `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed
    in crossbeam-channel 0.4.4. (CVE-2020-15254)

Note that Nessus has not tested for this issue 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/mfsa2020-45/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 82.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-15684");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/10/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macosx_firefox_installed.nasl");
  script_require_keys("MacOSX/Firefox/Installed");

  exit(0);
}

include('mozilla_version.inc');

kb_base = 'MacOSX/Firefox';
get_kb_item_or_exit(kb_base+'/Installed');

version = get_kb_item_or_exit(kb_base+'/Version', exit_code:1);
path = get_kb_item_or_exit(kb_base+'/Path', exit_code:1);

is_esr = get_kb_item(kb_base+'/is_esr');
if (is_esr) exit(0, 'The Mozilla Firefox installation is in the ESR branch.');

mozilla_check_version(version:version, path:path, product:'firefox', esr:FALSE, fix:'82.0', severity:SECURITY_HOLE);