WebKit, as used in Apple iOS before 9.3.2, Safari before 9.1.1, and tvOS before 9.2.1, improperly tracks taint attributes, which allows remote attackers to obtain sensitive information via a crafted web site.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - WebKit, as used in Apple iOS before 9.3.2, Safari before 9.1.1, and tvOS before 9.2.1, improperly tracks     taint attributes, which allows remote attackers to obtain sensitive information via a crafted web site.
    (CVE-2016-1858)

Note that Nessus relies on the presence of the package as reported by the vendor.

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.

Versions of Apple TV earlier than 9.2.1 are unpatched for vulnerabilities in the following components :

 - CFNetwork Proxies
 - CommonCrypto
 - CoreCapture
 - Disk Images
 - ImageIO
 - IOAcceleratorFamily
 - IOHIDFamily
 - Kernel
 - libc
 - libxml2
 - libxslt
 - OpenGL
 - WebKit
 - WebKit Canvas
 

The remote host is running a version of iOS that is prior to version 9.3.2 and the following components contain vulnerabilities :

 - Accessibility
 - CFNetwork Proxies
 - CommonCrypto
 - CoreCapture
 - Disk Images
 - ImageIO
 - IOAcceleratorFamily
 - IOHIDFamily
 - Kernel
 - libc
 - libxml2
 - libxslt
 - MapKit
 - OpenGL
 - Safari
 - Siri
 - WebKit
 - WebKit Canvas

According to its banner, the version of the remote Apple TV device is prior to 9.2.1. It is, therefore, affected by multiple vulnerabilities in the following components :

  - CFNetwork Proxies
  - CommonCrypto
  - CoreCapture
  - Disk Images
  - ImageIO
  - IOAcceleratorFamily
  - IOHIDFamily
  - Kernel
  - libc
  - libxml2
  - libxslt
  - OpenGL
  - WebKit
  - WebKit Canvas

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

The mobile device is running a version of iOS prior to 9.3.2. It is, therefore, affected by multiple vulnerabilities in the following components :

  - Accessibility
  - CFNetwork Proxies
  - CommonCrypto
  - CoreCapture
  - Disk Images
  - ImageIO
  - IOAcceleratorFamily
  - IOHIDFamily
  - Kernel
  - libc
  - libxml2
  - libxslt
  - MapKit
  - OpenGL
  - Safari
  - Siri
  - WebKit
  - WebKit Canvas

The version of Apple Safari installed on the remote Mac OS X host is prior to 9.1.1. It is, therefore, affected by the following vulnerabilities :

  - An information disclosure vulnerability exists due to a     failure to completely delete a user's browser history     when using the 'Clear History and Website Data' action.
    An attacker can exploit this to disclose sensitive     information. (CVE-2016-1849)

  - Multiple memory corruption issues exist in WebKit due to     improper validation of user-supplied input. A remote     attacker, via a specially crafted website, can exploit     these issues to execute arbitrary code. (CVE-2016-1854,     CVE-2016-1855, CVE-2016-1856, CVE-2016-1857,     CVE-2016-1859)

  - An information disclosure vulnerability exists in WebKit     due to insufficient taint tracking. A remote attacker     can exploit this, via a specially crafted SVG image, to     disclose information from another website.
    (CVE-2016-1858)

ID	Name	Product	Family	Type	Severity
263700	Linux Distros Unpatched Vulnerability : CVE-2016-1858	Nessus	Misc.	Local	medium
93511	Ubuntu 16.04 LTS : WebKitGTK+ vulnerabilities (USN-3079-1)	Nessus	Ubuntu Local Security Checks	Local	high
9337	Apple TV < 9.2.1 Multiple Vulnerabilities	Nessus Network Monitor	Internet Services		high
9332	Apple iOS < 9.3.2 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices		high
91311	Apple TV < 9.2.1 Multiple Vulnerabilities	Nessus	Misc.	Remote	high
91225	Apple iOS < 9.3.2 Multiple Vulnerabilities	Nessus	Mobile Devices	Local	high
91221	Mac OS X : Apple Safari < 9.1.1 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	Local	high

Detections

Analytics

CVE-2016-1858

medium

Tenable Plugins

medium

high

high

high

high

high

high