Vulnerabilities > CVE-2016-4671 - Out-of-bounds Write vulnerability in Apple mac OS X

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
apple
CWE-787
critical
nessus

Summary

An issue was discovered in certain Apple products. macOS before 10.12.1 is affected. The issue involves the "ImageIO" component. It allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write and application crash) via a crafted PDF file.

Vulnerable Configurations

Part Description Count
OS
Apple
101

Common Weakness Enumeration (CWE)

Nessus

NASL familyMacOS X Local Security Checks
NASL idMACOSX_SECUPD_10_11_6_2016-002__10_10_5_2016-006.NASL
descriptionThe remote host is running a version of Mac OS X that is 10.10.5 but is missing Security Update 2016-006, or else it is version 10.11.6 but is missing Security Update 2016-002. It is, therefore, affected by multiple vulnerabilities : - A memory corruption issue exists in the AppleGraphicsControl component due to improper lock state checking. A local attacker can exploit this, via a specially crafted application, to execute arbitrary code with kernel-level privileges. (CVE-2016-4662) - A memory corruption issue exists in the NVIDIA Graphics Driver due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition. (CVE-2016-4663) - Multiple flaws exist in the System Boot component due to improper validation of user-supplied input. A local attacker can exploit these to terminate the system or execute arbitrary code with kernel-level privileges. (CVE-2016-4669) - An out-of-bounds write error exists in the ImageIO component when parsing PDF files due to improper bounds checking. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted PDF file, to execute arbitrary code. (CVE-2016-4671) - A memory corruption issue exists in the Core Image component when handling JPEG files due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted JPEG file, to execute arbitrary code. (CVE-2016-4681) - An out-of-bounds read error exists in the ImageIO component when parsing specially crafted SGI images. An unauthenticated, remote attacker can exploit this to disclose potentially sensitive information in process memory. (CVE-2016-4682) - Multiple out-of-bounds read and write errors exist in the ImageIO component when parsing specially crafted SGI images. An unauthenticated, remote attacker can exploit these to disclose potentially sensitive information, cause a denial of service condition, or execute arbitrary code. (CVE-2016-4683)
last seen2020-06-01
modified2020-06-02
plugin id100427
published2017-05-26
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/100427
titleMac OS X 10.10.5 / 10.11.6 Multiple Vulnerabilities (Security Update 2016-002 / 2016-006)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100427);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id(
    "CVE-2016-4662",
    "CVE-2016-4663",
    "CVE-2016-4669",
    "CVE-2016-4671",
    "CVE-2016-4681",
    "CVE-2016-4682",
    "CVE-2016-4683"
  );
  script_bugtraq_id(93849, 93852, 94431);
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-10-24-2");

  script_name(english:"Mac OS X 10.10.5 / 10.11.6 Multiple Vulnerabilities (Security Update 2016-002 / 2016-006)");
  script_summary(english:"Checks for the presence of Security Update 2016-002 and 2016-006.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a Mac OS X update that fixes multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of Mac OS X that is 10.10.5 but
is missing Security Update 2016-006, or else it is version 10.11.6 but
is missing Security Update 2016-002. It is, therefore, affected by
multiple vulnerabilities :

  - A memory corruption issue exists in the
    AppleGraphicsControl component due to improper lock
    state checking. A local attacker can exploit this, via a
    specially crafted application, to execute arbitrary code
    with kernel-level privileges. (CVE-2016-4662)

  - A memory corruption issue exists in the NVIDIA Graphics
    Driver due to improper validation of user-supplied
    input. A local attacker can exploit this to cause a
    denial of service condition. (CVE-2016-4663)

  - Multiple flaws exist in the System Boot component due to
    improper validation of user-supplied input. A local
    attacker can exploit these to terminate the system or
    execute arbitrary code with kernel-level privileges.
    (CVE-2016-4669)

  - An out-of-bounds write error exists in the ImageIO
    component when parsing PDF files due to improper bounds
    checking. An unauthenticated, remote attacker can
    exploit this, by convincing a user to open a specially
    crafted PDF file, to execute arbitrary code.
    (CVE-2016-4671)

  - A memory corruption issue exists in the Core Image
    component when handling JPEG files due to improper
    validation of user-supplied input. An unauthenticated,
    remote attacker can exploit this, by convincing a user
    to open a specially crafted JPEG file, to execute
    arbitrary code. (CVE-2016-4681)

  - An out-of-bounds read error exists in the ImageIO
    component when parsing specially crafted SGI images. An
    unauthenticated, remote attacker can exploit this to
    disclose potentially sensitive information in process
    memory. (CVE-2016-4682)

  - Multiple out-of-bounds read and write errors exist in
    the ImageIO component when parsing specially crafted
    SGI images. An unauthenticated, remote attacker can
    exploit these to disclose potentially sensitive
    information, cause a denial of service condition, or
    execute arbitrary code. (CVE-2016-4683)");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207275");
  # https://lists.apple.com/archives/security-announce/2016/Oct/msg00001.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?34f01fa1");
  script_set_attribute(attribute:"solution", value:
"If running Mac OS X version 10.10.5, install Security Update 2016-006
or later. If running version Mac OS X version 10.11.6, install
Security Update 2016-002 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/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-2016-4671");

  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:"2016/10/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

# Compare 2 patch numbers to determine if patch requirements are satisfied.
# Return true if this patch or a later patch is applied
# Return false otherwise
function check_patch(year, number, fixed_patch_string)
{
  local_var p_split = split(fixed_patch_string, sep:"-");
  local_var p_year  = int( p_split[0]);
  local_var p_num   = int( p_split[1]);

  if (year >  p_year) return TRUE;
  else if (year <  p_year) return FALSE;
  else if (number >=  p_num) return TRUE;
  else return FALSE;
}

get_kb_item_or_exit("Host/local_checks_enabled");
os = get_kb_item_or_exit("Host/MacOSX/Version");

if (preg(pattern:"Mac OS X 10\.10\.5($|[^0-9])", string:os))
  fix_patch = "2016-006";
else if (preg(pattern:"Mac OS X 10\.11\.6($|[^0-9])", string:os))
  fix_patch = "2016-002";
else
  audit(AUDIT_OS_NOT, "Mac OS X 10.10.5 or Mac OS X 10.11.6");

packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
sec_boms_report = pgrep(pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages);
sec_boms = split(sec_boms_report, sep:'\n');

foreach package (sec_boms)
{
  # Grab patch year and number
  match = pregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package);
  if (empty_or_null(match[1]) || empty_or_null(match[2]))
    continue;

  patch_found = check_patch(year:int(match[1]), number:int(match[2]), fixed_patch_string:fix_patch);
  if (patch_found) exit(0, "The host, version " + os + ", has Security Update " + fix_patch + " or later installed and is therefore not affected.");
}

report =  '\n  Operating system version : ' + os +
report += '\n  Missing security update  : ' + fix_patch;
report += '\n  Installed security BOMs  : ';
if (sec_boms_report)
  report += str_replace(
              find   :'\n',
              replace:'\n                            ',
              string :sec_boms_report
              );
else
  report += 'n/a';

report += '\n';

security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);