Trend Micro Security

X.Org X Font Server QueryXBitmaps and QueryXExtents Handlers Integer Overflow

2011年2月15日
  危険度: : 中
  CVE識別番号: CVE-2007-4568

  概要

Integer overflow in the build_range function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values, which triggers a heap-based 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: 1001135
  Trend Micro Deep Security DPI Rule Name: 1001135 - X.Org X Font Server QueryXBitmaps and QueryXExtents Handlers Integer Overflow

  影響を受けるソフトウェア

  • X.Org X Font Server 1.0.1
  • X.Org X Font Server 1.0.2
  • X.Org X Font Server 1.0.4