WebKit in Apple Safari before 9.1.2 and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3079-1 advisory.

    A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user     were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related     to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary     code execution.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Safari installed on the remote host is prior or equal to 9.1.1, and is affected by multiple vulnerabilities. These vulnerabilities are contained within the Webkit subcomponent.

The remote host is running a version of iOS 9.3.x prior to version 9.3.3, and the following components contain vulnerabilities :

 - CFNetwork
 - libxml2
 - WebKit
 - CoreGraphics
 - FaceTime
 - ImageIO
 - IOHIDFamily
 - Sandbox
 - Kernel
 - libxslt
 - Calender
 - IOAcceleratorFamily
 - Safari
 - Siri Contacts
 - Web Media

Versions of Apple TV 9.2.x prior to 9.2.2 are affected by multiple vulnerabilities in the following components :

 - CFNetwork
 - CoreGraphics
 - IOAcceleratorFamily
 - IOHIDFamily
 - ImageIO
 - Kernel
 - libxml2
 - libxslt
 - Sandbox

According to its banner, the version of the remote Apple TV device is prior to 9.2.2. It is, therefore, affected by multiple vulnerabilities in the following components :

  - CoreGraphics
  - ImageIO
  - IOAcceleratorFamily
  - IOHIDFamily
  - Kernel
  - libxml2
  - libxslt
  - Sandbox Profiles
  - WebKit
  - WebKit Page Loading

Note that only 4th generation models are affected by the vulnerabilities.

The version of Apple Safari installed on the remote Mac OS X host is prior to 9.1.2. It is, therefore, affected by multiple vulnerabilities, the most serious of which can result in remote code execution, in the following components :

  - WebKit
  - WebKit JavaScript Bindings
  - WebKit Page Loading

ID	Name	Product	Family	Severity
93511	Ubuntu 16.04 LTS : WebKitGTK+ vulnerabilities (USN-3079-1)	Nessus	Ubuntu Local Security Checks	high
9550	Safari < 9.1.2 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	medium
9445	Apple iOS 9.3.x < 9.3.3 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	high
9430	Apple TV 9.2.x < 9.2.2 Multiple Vulnerabilities	Nessus Network Monitor	Internet Services	medium
92494	Apple TV < 9.2.2 Multiple Vulnerabilities	Nessus	Misc.	critical
92358	Mac OS X : Apple Safari < 9.1.2 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2016-4586

high

Tenable Plugins

high

medium

high

medium

critical

high