Microsoft Exchange Malformed iCal Denial of Service
Severity: HIGH
CVE Identifier: CVE-2007-0039
Advisory Date: MAR 21, 2011
DESCRIPTION
The Exchange Collaboration Data Objects (EXCDO) functionality in Microsoft Exchange Server 2000 SP3, 2003 SP1 and SP2, and 2007 allows remote attackers to cause a denial of service (crash) via an Internet Calendar (iCal) file containing multiple X-MICROSOFT-CDO-MODPROPS (MODPROPS) properties in which the second MODPROPS is longer than the first, which triggers a NULL pointer dereference and an unhandled exception.
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: 1000993
Trend Micro Deep Security DPI Rule Name: 1000993 - Microsoft Exchange Malformed iCal Denial of Service
AFFECTED SOFTWARE AND VERSION
- Microsoft Exchange Server 2000 SP3
- Microsoft Exchange Server 2003 SP1
- Microsoft Exchange Server 2003 SP2
- Microsoft Exchange Server 2007
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