The version of Firefox installed on the remote macOS or Mac OS X host is prior to 71.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-36 advisory.
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. (CVE-2019-11745)
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). (CVE-2019-11756)
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. (CVE-2019-17008)
Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. (CVE-2019-17010)
Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. (CVE-2019-17011)
Mozilla developers Christoph Diehl, Nathan Froyd, Jason Kratzer, Christian Holler, Karl Tomlinson, Tyson Smith reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
(CVE-2019-17012)
Mozilla developers and community members Philipp, Diego Calleja, Mikhail Gavrilov, Jason Kratzer, Christian Holler, Markus Stange, Tyson Smith reported memory safety bugs present in Firefox 70. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2019-17013)
If an image had not loaded correctly (such as when it is not actually an image), it could be dragged and dropped cross-domain, resulting in a cross-origin information leak.
(CVE-2019-17014)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2019-36.
# The text itself is copyright (C) Mozilla Foundation.
include('compat.inc');
if (description)
{
script_id(131772);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/05");
script_cve_id(
"CVE-2019-11745",
"CVE-2019-11756",
"CVE-2019-17005",
"CVE-2019-17008",
"CVE-2019-17010",
"CVE-2019-17011",
"CVE-2019-17012",
"CVE-2019-17013",
"CVE-2019-17014"
);
script_xref(name:"MFSA", value:"2019-36");
script_name(english:"Mozilla Firefox < 71.0");
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 71.0. It is, therefore, affected by
multiple vulnerabilities as referenced in the mfsa2019-36 advisory.
- When encrypting with a block cipher, if a call to
NSC_EncryptUpdate was made with data smaller than the block
size, a small out of bounds write could occur. This could
have caused heap corruption and a potentially exploitable
crash. (CVE-2019-11745)
- Improper refcounting of soft token session objects could
cause a use-after-free and crash (likely limited to a denial
of service). (CVE-2019-11756)
- When using nested workers, a use-after-free could occur
during worker destruction. This resulted in a potentially
exploitable crash. (CVE-2019-17008)
- Under certain conditions, when checking the Resist
Fingerprinting preference during device orientation checks,
a race condition could have caused a use-after-free and a
potentially exploitable crash. (CVE-2019-17010)
- Under certain conditions, when retrieving a document from
a DocShell in the antitracking code, a race condition
could cause a use-after-free condition and a potentially
exploitable crash. (CVE-2019-17011)
- Mozilla developers Christoph Diehl, Nathan Froyd, Jason
Kratzer, Christian Holler, Karl Tomlinson, Tyson Smith
reported memory safety bugs present in Firefox 70 and
Firefox ESR 68.2. Some of these bugs showed evidence of
memory corruption and we presume that with enough effort
some of these could have been exploited to run arbitrary code.
(CVE-2019-17012)
- Mozilla developers and community members Philipp, Diego
Calleja, Mikhail Gavrilov, Jason Kratzer, Christian
Holler, Markus Stange, Tyson Smith reported memory safety
bugs present in Firefox 70. Some of these bugs showed
evidence of memory corruption and we presume that with
enough effort some of these could have been exploited to
run arbitrary code. (CVE-2019-17013)
- If an image had not loaded correctly (such as when it is
not actually an image), it could be dragged and dropped
cross-domain, resulting in a cross-origin information leak.
(CVE-2019-17014)
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/mfsa2019-36/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 71.0 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/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-2019-17013");
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:"2019/12/03");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/06");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 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:'71.0', severity:SECURITY_WARNING);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11745
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11756
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17005
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17008
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17010
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17011
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17012
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17013
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17014
www.mozilla.org/en-US/security/advisories/mfsa2019-36/