An issue was discovered in certain Apple products. iOS before 11.2 is affected. macOS before 10.13.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app that triggers type confusion.

The version of Apple iOS running on the mobile device is prior to 11.2. It is, therefore, affected by multiple vulnerabilities as referenced in the HT208334 advisory.

The remote host is running a version of macOS that is 10.13.x prior to 10.13.2. It is, therefore, affected by multiple vulnerabilities in the following components :

 - Apache
 - curl
 - Directory Utility
 - IOAcceleratorFamily
 - IOKit
 - Intel Graphics Driver
 - Kernel
 - Mail
 - Mail Drafts
 - OpenSSL
 - Screen Sharing Server

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

According to its banner, the version of Apple TV on the remote device is prior to 11.2. It is, therefore, affected by multiple vulnerabilities as described in the HT208327 security advisory.

Note that only 4th and 5th generation models are affected by these vulnerabilities.

The remote host is running Mac OS X 10.11.6 or Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities affecting the following components :

  - apache
  - curl
  - IOAcceleratorFamily
  - IOKit
  - Kernel
  - OpenSSL
  - Screen Sharing Server

The remote host is running a version of Mac OS X that is 10.13.x prior to 10.13.2. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache
  - curl
  - Directory Utility
  - IOAcceleratorFamily
  - IOKit
  - Intel Graphics Driver
  - Kernel
  - Mail
  - Mail Drafts
  - OpenSSL
  - Screen Sharing Server

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

ID	Name	Product	Family	Severity
700544	Apple iOS < 11.2 Multiple Vulnerabilities (APPLE-SA-2017-12-13-6)	Nessus Network Monitor	Mobile Devices	high
700513	macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)	Nessus Network Monitor	Operating System Detection	critical
105612	Apple TV < 11.2 Multiple Vulnerabilities	Nessus	Misc.	high
105081	macOS and Mac OS X Multiple Vulnerabilities (Security Update 2017-002 and 2017-005)	Nessus	MacOS X Local Security Checks	high
105080	macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)	Nessus	MacOS X Local Security Checks	high
105075	Apple iOS < 11.2 Multiple Vulnerabilities	Nessus	Mobile Devices	high

Detections

Analytics

CVE-2017-13855

medium

Tenable Plugins

high

critical

high

high

high

high