The version of Apple Safari installed on the remote macOS or Mac OS X host is prior to 11.1. It is, therefore, affected by multiple vulnerabilities as described in the HT4808 security advisory.

The version of Safari installed on the remote Windows host is earlier than 5.1.  As such, it is potentially affected by numerous issues in the following components :

  - CFNetwork
  - ColorSync
  - CoreFoundation
  - CoreGraphics
  - International Components for Unicode
  - ImageIO
  - libxslt
  - libxml
  - Safari
  - WebKit

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

  - Cross-site scripting (XSS) vulnerability in WebKit in Apple Safari before 5.0.6 allows remote attackers to     inject arbitrary web script or HTML via vectors involving a URL that contains a username. (CVE-2011-0242)

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

The mobile device is running a version of iOS that is prior to version 5.0. Version 5.0 contains numerous security-related fixes for the following vulnerabilities :

  - Apple iOS Calendar Synchronization SSL Certificate     Validation Information Disclosure Vulnerability     (CVE-2011-3253)

  - Apple iOS Calendar Cross-Site Scripting Vulnerability     (CVE-2011-3254)

  - Apple iOS CFNetwork Information Disclosure Vulnerability     (CVE-2011-3255)

  - Apple iOS and Mac OS X CFNetwork Cross Domain     Information Disclosure Vulnerability (CVE-2011-3246)

  - Apple Mac OS X CoreFoundation Memory Corruption     Vulnerability (CVE-2011-0259)

  - FreeType Font Document Multiple Memory Corruption     Vulnerabilities (CVE-2011-3256)

  - Apple Mac OS X QuickTime Cross-Domain Information     Disclosure Vulnerability (CVE-2011-0187)

  - Apple iOS Mail Cookie Synchronization Validation     Information Disclosure Vulnerability (CVE-2011-3257)

  - An information disclosure vulnerability, known as BEAST,     exists in the SSL 3.0 and TLS 1.0 protocols due to a     flaw in the way the initialization vector (IV) is     selected when operating in cipher-block chaining (CBC)     modes. A man-in-the-middle attacker can exploit this     to obtain plaintext HTTP header data, by using a     blockwise chosen-boundary attack (BCBA) on an HTTPS     session, in conjunction with JavaScript code that uses     the HTML5 WebSocket API, the Java URLConnection API,     or the Silverlight WebClient API. (CVE-2011-3389)

  - Opera Web Browser Information Disclosure Vulnerability

  - Apple iOS Home Screen Information Disclosure     Vulnerability (CVE-2011-3431)

  - libTIFF CCITT Group 4 Encoded TIFF Image Buffer Overflow     Vulnerability (CVE-2011-0192)

  - Apple Safari ImageIO TIFF Image Handling Heap Buffer     Overflow Vulnerability (CVE-2011-0241)

  - Apple Mac OS X ICU Buffer Overflow Vulnerability     (CVE-2011-0206)

  - Apple Kernel TCP Exhaustion Denial of Service     Vulnerability (CVE-2011-3259)

  - Apple Mac OS X IPV6 Socket Options Denial of Service     Vulnerability (CVE-2011-1132)

  - Apple iOS Keyboard Information Disclosure Vulnerability     (CVE-2011-3245)

  - Apple Safari 'libxml' Remote Code Execution     Vulnerability (CVE-2011-0216)

  - Apple iPhone/iPad/iPod Touch prior to iOS 5 Buffer     Overflow Vulnerability (CVE-2011-3260)

  - Apple iPhone/iPad/iPod Touch prior to iOS 5 Remote Code     Execution Vulnerability (CVE-2011-3261)

  - Apple Mac OS X QuickLook Office File Memory Corruption     Vulnerability (CVE-2011-0208)

  - Apple Mac OS X QuickLook Remote Code Execution     Vulnerability (CVE-2011-0184)

  - Apple iPhone/iPad/iPod Touch 'Content-Disposition'     Header Cross-Site Scripting Vulnerability     (CVE-2011-3246)

  - Apple iOS Parental Restrictions Passcode Information     Disclosure Vulnerability (CVE-2011-3249)

  - Apple iOS Insecure Misleading UI Insecure     Configuration Weakness (CVE-2011-3430)

  - Apple iOS Remote Denial of Service Vulnerability     (CVE-2011-3432)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0218)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0221)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0222)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0225)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0232)

  - WebKit FrameOwner Element Memory Corruption Remote     Code Execution Vulnerability (CVE-2011-0233)

  - WebKit Malformed XHTML Tags Use-After-Free     Memory Corruption Vulnerability (CVE-2011-0234)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0235)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0238)

  - WebKit 'NamedNodeMap.cpp' Memory Corruption Remote     Code Execution Vulnerability (CVE-2011-0254)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-0255)

  - Google Chrome prior to 9.0.597.94 Multiple Security     Vulnerabilities (CVE-2011-0981)

  - Google Chrome prior to 9.0.597.107 Multiple Security     Vulnerabilities (CVE-2011-1109)

  - Google Chrome prior to 10.0.648.127 Multiple Security     Vulnerabilities (CVE-2011-1188)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-1288)

  - Google Chrome prior to 10.0.648.204 Multiple Security     Vulnerabilities (CVE-2011-1293)

  - Google Chrome prior to 11.0.696.57 Multiple Security     Vulnerabilities (CVE-2011-1449)

  - WebKit MathML Tags Use-After-Free Remote Code Execution     Vulnerability

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-1453)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-1457)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-1462)

  - WebKit Memory Corruption Remote Code Execution     Vulnerability (CVE-2011-1797)

  - WebKit Multiple Unspecified Remote Code Execution     Vulnerabilities (CVE-2011-2338)

  - WebKit Style Sheet Elements Remote Code Execution     Vulnerability (CVE-2011-2341)

  - Google Chrome Prior to 12.0.742.112 Multiple Security     Vulnerabilities (CVE-2011-2351)

  - Google Chrome Prior to 13.0.782.107 Multiple Security     Vulnerabilities (CVE-2011-2359)

  - Google Chrome Prior to 13.0.782.215 Multiple Security     Vulnerabilities (CVE-2011-2823)

  - Mozilla Firefox/Thunderbird/SeaMonkey YARR Remote Code     Execution Vulnerability (CVE-2011-3232)

  - Google Chrome Prior to 14.0.835.163 Multiple Security     Vulnerabilities (CVE-2011-3234)

  - WebKit Embedded URL Cross Domain Scripting Vulnerability     (CVE-2011-0242)

  - WebKit Address Bar URI Spoofing Vulnerability     (CVE-2011-1107)

  - WebKit 'libxslt' Remote Code Execution Vulnerability     (CVE-2011-1774)

  - WebKit 'HTML5' Drag and Drop Cross-Origin Information     Disclosure Vulnerability (CVE-2011-0166)

  - WebKit Inactive DOM Windows Cross Domain Scripting     Vulnerability (CVE-2011-3243)

  - Apple iOS WiFi Credentials Information Disclosure     Vulnerability (CVE-2011-3234)

The remote host has Safari installed. 

Versions of Safari earlier than 5.1 are potentially affected by several issues in the following component :

  - CFNetwork

  - ColorSync

  - CoreFoundation

  - CoreGraphics

  - International Components for Unicode

  - ImageIO

  - libxslt

  - libxml

  - Safari

  - WebKit

According to its banner, the remote Apple iOS device is missing a security update.  Versions of Apple iOS 3.0 through 4.3.5 are affected by vulnerabilities within the following components :

 - CalDAV
 - Calendar
 - CFNetwork
 - CoreFoundation
 - CoreGraphics
 - CoreMedia
 - Data Access - Data Security
 - Home security
 - ImageIO
 - Kernel
 - Keyboards
 - libxml
 - OfficeImport
 - Safari
 - Settings
 - UIKit Alerts
 - WebKit
 - WiFi

ID	Name	Product	Family	Published	Updated	Severity
55638	Mac OS X : Apple Safari < 5.1 / 5.0.6	Nessus	MacOS X Local Security Checks	7/21/2011	7/3/2019	critical
55639	Safari < 5.1 Multiple Vulnerabilities	Nessus	Windows	7/21/2011	7/27/2018	high
263591	Linux Distros Unpatched Vulnerability : CVE-2011-0242	Nessus	Misc.	9/10/2025	9/10/2025	medium
60026	Apple iOS < 5.0 Multiple Vulnerabilities (BEAST)	Nessus	Mobile Devices	6/19/2012	10/22/2025	critical
5992	Safari < 5.1 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	7/20/2011	3/6/2019	high
6041	Apple iOS < 5.0 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	10/12/2011	3/6/2019	high

Detections

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