Trend Micro Security

Poptop Negative Read Overflow

2011年2月15日
  危険度: : 高
  CVE識別番号: CVE-2003-0213

  概要

 cve: ctrlpacket.c in PoPToP PPTP server before 1.1.4-b3 allows remote attackers to cause a denial of service via a length field of 0 or 1, which causes a negative value to be fed into a read operation, leading to a buffer overflow.

  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: 1001202
  Trend Micro Deep Security DPI Rule Name: 1001202 - Identified Suspicious Usage Of Shellcode Encoders

  影響を受けるソフトウェア

  • PoPToP PPTP Server 1.0.1
  • PoPToP PPTP Server 1.1.2
  • PoPToP PPTP Server 1.1.3
  • PoPToP PPTP Server 1.1.3 -20021009
  • PoPToP PPTP Server 1.1.4 -b1
  • PoPToP PPTP Server 1.1.4 -b2