危険度: 中
  CVE識別番号: CVE-2007-4924
  情報公開日: 2 15, 2011

  概要

 The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to cause a denial of service (crash) via an invalid Content-Length header field in Session Initiation Protocol (SIP) packets, which causes a \0 byte to be written to an "attacker-controlled address."

  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: 1003661
  Trend Micro Deep Security DPI Rule Name: 1003661 - OpenH323 Opal SIP Protocol Remote Denial Of Service Vulnerability

  影響を受けるソフトウェア

  • ekiga ekiga 2.0.9
  • openh323_project openh323 2.2.3