This update fixes a regression in parameter passing . In addition, multiple weaknesses in HTTP DIGESTS are fixed . CVE-2011-5062: The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33 and 7.x before 7.0.12 does not check qop values, which might allow remote attackers to bypass intended integrity-protection requirements via a qop=auth value, a different vulnerability than CVE-2011-1184. CVE-2011-5063: The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 does not check realm values, which might allow remote attackers to bypass intended access restrictions by leveraging the availability of a protection space with weaker authentication or authorization requirements, a different vulnerability than CVE-2011-1184. CVE-2011-5064: DigestAuthenticator.java in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 uses Catalina as the hard-coded server secret , which makes it easier for remote attackers to bypass cryptographic protection mechanisms by leveraging knowledge of this string, a different vulnerability than CVE-2011-1184. Special Instructions and Notes: Please reboot the system after installing this update.