Vulnerabilities > CVE-2016-4718 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple products

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
network
low complexity
apple
CWE-119
nessus
NVD
Published: 2016-09-25
Updated: 2024-11-21

Summary

Buffer overflow in FontParser in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to obtain sensitive information from process memory via a crafted font file.

Vulnerable Configurations

Part Description Count
OS
Apple
321

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOS_10_12.NASL
    descriptionThe remote host is running a version of Mac OS X that is prior to 10.10.5, 10.11.x prior to 10.11.6, or is not macOS 10.12. It is, therefore, affected by multiple vulnerabilities in the following components : - apache - apache_mod_php - Apple HSSPI Support - AppleEFIRuntime - AppleMobileFileIntegrity - AppleUCC - Application Firewall - ATS - Audio - Bluetooth - cd9660 - CFNetwork - CommonCrypto - CoreCrypto - CoreDisplay - curl - Date & Time Pref Pane - DiskArbitration - File Bookmark - FontParser - IDS - Connectivity - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOThunderboltFamily - Kerberos v5 PAM module - Kernel - libarchive - libxml2 - libxpc - libxslt - mDNSResponder - NSSecureTextField - Perl - S2 Camera - Security - Terminal - WindowServer Note that successful exploitation of the most serious issues can result in arbitrary code execution.
    last seen2020-06-01
    modified2020-06-02
    plugin id93685
    published2016-09-23
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/93685
    titlemacOS < 10.12 Multiple Vulnerabilities
  • NASL familyMisc.
    NASL idAPPLETV_10.NASL
    descriptionAccording to its banner, the version of Apple TV on the remote device is prior to 10. It is, therefore, affected by multiple vulnerabilities in the following components : - Audio - CFNetwork - CoreCrypto - FontParser - IOAcceleratorFamily - Kernel - libxml2 - libxslt - Security - WebKit Note that only 4th generation models are affected by these vulnerabilities.
    last seen2020-06-01
    modified2020-06-02
    plugin id93776
    published2016-09-28
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/93776
    titleApple TV < 10 Multiple Vulnerabilities

References