OpenH323 Opal SIP Protocol Remote Denial Of Service Vulnerability
Severity: MEDIUM
CVE Identifier: CVE-2007-4924
Advisory Date: FEB 15, 2011
DESCRIPTION
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."
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: 1003661
Trend Micro Deep Security DPI Rule Name: 1003661 - OpenH323 Opal SIP Protocol Remote Denial Of Service Vulnerability
AFFECTED SOFTWARE AND VERSION
- ekiga ekiga 2.0.9
- openh323_project openh323 2.2.3