Apache Tomcat null character to threads denial of service
|tomcat-null-thread-dos (9396)||Medium Risk|
Apache Tomcat is vulnerable to a denial of service attack. A remote attacker can send specially-crafted URL requests containing a large amount of null characters to the server to cause the consumption of all threads on the server.
Denial of Service
Upgrade to the latest version of Apache Tomcat (4.1.3 beta or later), available from the Jakarta Project Web site. See References.
- BugTraq Mailing List, Thu Jun 20 2002 - 04:08:08 CDT: KPMG-2002025: Apache Tomcat Denial of Service.
- The Jakarta Project Web site: Binary Downloads.
- BID-5067: Apache Tomcat Null Character Malformed Request Denial Of Service Vulnerability
- CVE-2002-0935: Apache Tomcat 4.0.3, and possibly other versions before 4.1.3 beta, allows remote attackers to cause a denial of service (resource exhaustion) via a large number of requests to the server with null characters, which causes the working threads to hang.
- OSVDB ID: 5051: Apache Tomcat Null Character DoS
- Apache Tomcat 4.0.3
- Microsoft Windows 2003 Server
Jun 20, 2002
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