Trend Micro Security

MultipleVNC Integer Overflow Vulnerability

2011年2月15日
  危険度: : 緊急
  CVE識別番号: CVE-2009-0388

  概要

Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to cause a denial of service (heap corruption and application crash) or possibly execute arbitrary code via a large length value in a message, related to the (a) ClientConnection::CheckBufferSize and (b) ClientConnection::CheckFileZipBufferSize functions in ClientConnection.cpp.

  トレンドマイクロの対策

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.

  対応方法

  Trend Micro Deep Security DPI Rule Number: 1003290
  Trend Micro Deep Security DPI Rule Name: 1003290 - TightVNC VNCViewer Authenticate Buffer Overflow

  影響を受けるソフトウェア

  • Tightvnc Tightvnc 1.3.9
  • Ultravnc Ultravnc 1.0.2
  • Ultravnc Ultravnc 1.0.5