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RHSA-2014:0865: tomcat6 security and bug fix update

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RHSA-2014:0865: tomcat6 security and bug fix update



Apache Tomcat is a servlet container for the Java Servlet and JavaServerPages (JSP) technologies.It was discovered that Apache Tomcat did not limit the length of chunksizes when using chunked transfer encoding. A remote attacker could usethis flaw to perform a denial of service attack against Tomcat by streamingan unlimited quantity of data, leading to excessive consumption of serverresources. (CVE-2014-0075)It was found that Apache Tomcat did not check for overflowing values whenparsing request content length headers. A remote attacker could use thisflaw to perform an HTTP request smuggling attack on a Tomcat server locatedbehind a reverse proxy that processed the content length header correctly.(CVE-2014-0099)It was found that the org.apache.catalina.servlets.DefaultServletimplementation in Apache Tomcat allowed the definition of XML ExternalEntities (XXEs) in provided XSLTs. A malicious application could use thisto circumvent intended security restrictions to disclose sensitiveinformation. (CVE-2014-0096)The CVE-2014-0075 issue was discovered by David Jorm of Red Hat ProductSecurity.This update also fixes the following bugs:All Tomcat 6 users are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. Tomcat must berestarted for this update to take effect.


  • redhat-upgrade-tomcat6
  • redhat-upgrade-tomcat6-admin-webapps
  • redhat-upgrade-tomcat6-docs-webapp
  • redhat-upgrade-tomcat6-el-2-1-api
  • redhat-upgrade-tomcat6-javadoc
  • redhat-upgrade-tomcat6-jsp-2-1-api
  • redhat-upgrade-tomcat6-lib
  • redhat-upgrade-tomcat6-servlet-2-5-api
  • redhat-upgrade-tomcat6-webapps

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