Public Date:
493381: CVE-2009-0033 tomcat6 Denial-Of-Service with AJP connection

The MITRE CVE dictionary describes this issue as:

Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when the Java AJP connector and mod_jk load balancing are used, allows remote attackers to cause a denial of service (application outage) via a crafted request with invalid headers, related to temporary blocking of connectors that have encountered errors, as demonstrated by an error involving a malformed HTTP Host header.

Find out more about CVE-2009-0033 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Certificate System 7.3 for 4AS RHSA-2010:0602 2010-08-04
Red Hat Satellite 5.1 (RHEL v.4 AS) (tomcat5) RHSA-2009:1617 2009-11-30
Red Hat Satellite 5.3 (RHEL v.4) (tomcat5) RHSA-2009:1616 2009-11-30
Red Hat JBoss Web Server 1.0 for RHEL 5 Server (tomcat5) RHSA-2009:1454 2009-09-21
Red Hat Satellite 5.2 (RHEL v.4 AS) (tomcat5) RHSA-2009:1616 2009-11-30
Red Hat Developer Suite v.3 (AS v.4) (tomcat5) RHSA-2009:1563 2009-11-09
Red Hat Enterprise Linux version 5 (tomcat5) RHSA-2009:1164 2009-07-21
Red Hat JBoss Web Server 1.0 for RHEL 4 AS (tomcat5) RHSA-2009:1454 2009-09-21
Red Hat JBoss Web Server 1.0 for RHEL 4 AS (tomcat6) RHSA-2009:1506 2009-10-14
Red Hat Application Server v2 4AS (tomcat5) RHSA-2009:1562 2009-11-09
Red Hat JBoss Web Server 1.0 for RHEL 5 Server (tomcat6) RHSA-2009:1506 2009-10-14