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 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)

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 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 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

The remote host is running a version of iOS 9.3.x prior to version 9.3.2 and the following components contain vulnerabilities :

 - libxml2
 - WebKit

The version of Safari installed on the remote host is prior or equal to 9.1, and is affected by multiple vulnerabilities. These vulnerablilities are contained within the Webkit subcomponent.

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
 

Versions of Apple TV 9.2.x earlier than 9.2.1 are vulnerable to the following issues :

 - 'Libxml2' contains an out-of-bounds read flaw in the 'xmlParseEndTag2()' function found within 'parser.c'. The vulnerability is triggered when parsing an end tag. This may allow a context-dependent attacker to crash a process linked against the library or potentially disclose memory contents. (CVE-2016-1838)
 - An out-of-bounds read flaw in the 'xmlNextChar()' function found within 'parserInternals.c' is triggered when parsing characters in an XML file. This may allow a context-dependent attacker to crash a process linked against the library or potentially disclose memory contents. (CVE-2016-1833)
 - An overflow condition exists within the 'htmlParseName()' and 'htmlParseNameComplex()' functions of 'HTMLparser.c'. The issue is triggered as user-supplied input is not properly validated when parsing characters in a range. With a specially crafted file, a context-dependent attacker can cause a heap-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code. (CVE-2016-1839)
 - A use-after-free error is triggered when handling 'GraphicsContext' objects in memory. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and execute arbitrary code. (CVE-2016-1859)
 - A use-after-free error is triggered when handling 'TextTrack' objects in memory. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and execute arbitrary code. (CVE-2016-1856)
 - A use-after-free condition is triggered as user-supplied input is not properly validated when handling 'ArrayStorage DFG' optimization. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and execute arbitrary code. (CVE-2016-1857)

ID	Name	Product	Family	Published	Updated	Severity
91311	Apple TV < 9.2.1 Multiple Vulnerabilities	Nessus	Misc.	5/24/2016	11/14/2019	high
91221	Mac OS X : Apple Safari < 9.1.1 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	5/18/2016	11/19/2019	high
91225	Apple iOS < 9.3.2 Multiple Vulnerabilities	Nessus	Mobile Devices	5/18/2016	9/4/2024	high
93511	Ubuntu 16.04 LTS : WebKitGTK+ vulnerabilities (USN-3079-1)	Nessus	Ubuntu Local Security Checks	9/15/2016	8/27/2024	high
9332	Apple iOS < 9.3.2 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	5/26/2016	3/6/2019	high
9444	Apple iOS 9.3.x < 9.3.2 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	7/29/2016	3/6/2019	medium
9549	Safari < 9.1.1 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	9/9/2016	3/6/2019	medium
9337	Apple TV < 9.2.1 Multiple Vulnerabilities	Nessus Network Monitor	Internet Services	5/27/2016	3/6/2019	high
9431	Apple TV 9.2.x < 9.2.1 Multiple Vulnerabilities	Nessus Network Monitor	Internet Services	7/25/2016	3/6/2019	medium

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