Apple Webkit Blink Event Dangling Pointer Remote Code Execution Vulnerability

  Severity: CRITICAL
  CVE Identifier: CVE-2010-0050
  Advisory Date: FEB 14, 2011

  DESCRIPTION

Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an HTML document with improperly nested tags. nvd: Per: http://lists.apple.com/archives/security-announce/2010/Mar/msg00000.html 'WebKit CVE-ID: CVE-2010-0050 Available for: Mac OS X v10.4.11, Mac OS X Server v10.4.11, Mac OS X v10.5.8, Mac OS X Server v10.5.8, Mac OS X v10.6.1 or later, Mac OS X Server v10.6.1 or later, Windows 7, Vista, XP Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution Description: A use-after-free issue exists in WebKit's handling of incorrectly nested HTML tags. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory reference tracking. Credit to wushi&Z of team509 working with TippingPoint's Zero Day Initiative for reporting this issue.

  TREND MICRO PROTECTION INFORMATION

Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.

  SOLUTION

  Trend Micro Deep Security DPI Rule Number: 1004173
  Trend Micro Deep Security DPI Rule Name: 1004173 - Apple Webkit Blink Event Dangling Pointer Remote Code Execution

  AFFECTED SOFTWARE AND VERSION

  • Apple Safari 4.0
  • Apple Safari 4.0.0b
  • Apple Safari 4.0.1
  • Apple Safari 4.0.2
  • Apple Safari 4.0.3
  • Apple Safari 4.0.4

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