Apache Tomcat: Multiple vulnerabilities

Background

Apache Tomcat is a Servlet-3.0/JSP-2.2 Container.

Description

Multiple vulnerabilities have been discovered in Apache Tomcat. Please review the CVE identifiers referenced below for details.

Impact

The vulnerabilities allow an attacker to cause a Denial of Service, to hijack a session, to bypass authentication, to inject webscript, to enumerate valid usernames, to read, modify and overwrite arbitrary files, to bypass intended access restrictions, to delete work-directory files, to discover the server’s hostname or IP, to bypass read permissions for files or HTTP headers, to read or write files outside of the intended working directory, and to obtain sensitive information by reading a log file.

Workaround

There is no known workaround at this time.

Resolution

All Apache Tomcat 6.0.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-servers/tomcat-6.0.35"

All Apache Tomcat 7.0.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-servers/tomcat-7.0.23"