Buffer overflow in International Components for Unicode (ICU) in Apple Mac OS X before 10.6.8 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving uppercase strings.

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 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 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 remote host is running a version of Mac OS X 10.6.x that is prior to 10.6.8. This update contains security-related fixes for the following components :

  - App Store
  - ATS
  - Certificate Trust Policy
  - CoreFoundation
  - CoreGraphics
  - FTP Server
  - ImageIO
  - International Components for Unicode
  - Kernel
  - Libsystem
  - libxslt
  - MobileMe
  - MySQL
  - OpenSSL
  - patch
  - QuickLook
  - QuickTime
  - Samba
  - servermgrd
  - subversion

ID	Name	Product	Family	Severity
60026	Apple iOS < 5.0 Multiple Vulnerabilities (BEAST)	Nessus	Mobile Devices	critical
55639	Safari < 5.1 Multiple Vulnerabilities	Nessus	Windows	high
55638	Mac OS X : Apple Safari < 5.1 / 5.0.6	Nessus	MacOS X Local Security Checks	critical
55416	Mac OS X 10.6.x < 10.6.8 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical

Detections

Analytics

CVE-2011-0206

critical

Tenable Plugins

critical

high

critical

critical