CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
96.3%
The version of Mozilla Firefox ESR installed on the remote Mac OS X host is prior to 38.2.1. It is, therefore, affected by the following vulnerabilities :
A use-after-free error exists when handling restyling operations during the resizing of canvas elements due to the canvas references being recreated, thus destroying the original references. A remote, unauthenticated attacker can exploit this to deference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-4497)
A security feature bypass vulnerability exists due to a flaw that allows the manipulation of the ‘data:’ URL on a loaded web page without install permission prompts being displayed to the user. A remote, unauthenticated attacker can exploit this to install add-ons from a malicious source. (CVE-2015-4498)
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(85686);
script_version("1.7");
script_cvs_date("Date: 2019/11/22");
script_cve_id("CVE-2015-4497", "CVE-2015-4498");
script_name(english:"Firefox ESR < 38.2.1 Multiple Vulnerabilities (Mac OS X)");
script_summary(english:"Checks the version of Firefox.");
script_set_attribute(attribute:"synopsis", value:
"The remote Mac OS X host contains a web browser that is affected by
multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of Mozilla Firefox ESR installed on the remote Mac OS X
host is prior to 38.2.1. It is, therefore, affected by the following
vulnerabilities :
- A use-after-free error exists when handling restyling
operations during the resizing of canvas elements due to
the canvas references being recreated, thus destroying
the original references. A remote, unauthenticated
attacker can exploit this to deference already freed
memory, resulting in a denial of service condition or
the execution of arbitrary code. (CVE-2015-4497)
- A security feature bypass vulnerability exists due to a
flaw that allows the manipulation of the 'data:' URL on
a loaded web page without install permission prompts
being displayed to the user. A remote, unauthenticated
attacker can exploit this to install add-ons from a
malicious source. (CVE-2015-4498)");
script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2015-94/");
script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2015-95/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Firefox ESR 38.2.1 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_attribute(attribute:"cvss_score_source", value:"CVE-2015-4497");
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:"2015/08/27");
script_set_attribute(attribute:"patch_publication_date", value:"2015/08/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2015-2019 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 (isnull(is_esr)) audit(AUDIT_NOT_INST, "Mozilla Firefox ESR");
mozilla_check_version(product:'firefox', version:version, path:path, esr:TRUE, fix:'38.2.1', severity:SECURITY_HOLE);