[Bug 909828] Re: Tomcat needs update to prevent hash function DoS attack

[Launchpad Bug Tracker]

This bug was fixed in the package tomcat6 - 6.0.32-5ubuntu1.2

---------------
tomcat6 (6.0.32-5ubuntu1.2) oneiric-security; urgency=low

  * SECURITY UPDATE: cross-request information leakage
    - debian/patches/0016-CVE-2011-3375.patch: ensure that the request and
      response objects are recycled after being re-populated in
      java/org/apache/catalina/connector/CoyoteAdapter.java,
      java/org/apache/coyote/ajp/AjpAprProcessor.java,
      java/org/apache/coyote/ajp/AjpProcessor.java,
      java/org/apache/coyote/http11/Http11AprProcessor.java,
      java/org/apache/coyote/http11/Http11NioProcessor.java,
      java/org/apache/coyote/http11/Http11Processor.java.
    - CVE-2011-3375
  * SECURITY UPDATE: denial of service via hash collision and incorrect
    handling of large numbers of parameters and parameter values
    (LP: #909828)
    - debian/patches/0017-CVE-2012-0022.patch: refactor parameter handling
      code in conf/web.xml,
      java/org/apache/catalina/connector/Connector.java,
      java/org/apache/catalina/connector/mbeans-descriptors.xml,
      java/org/apache/catalina/connector/Request.java,
      java/org/apache/catalina/filters/FilterBase.java,
      java/org/apache/catalina/filters/FailedRequestFilter.java,
      java/org/apache/catalina/Globals.java,
      java/org/apache/coyote/Request.java,
      java/org/apache/tomcat/util/buf/B2CConverter.java,
      java/org/apache/tomcat/util/buf/ByteChunk.java,
      java/org/apache/tomcat/util/buf/MessageBytes.java,
      java/org/apache/tomcat/util/buf/StringCache.java,
      java/org/apache/tomcat/util/http/LocalStrings.properties,
      java/org/apache/tomcat/util/http/Parameters.java,
      webapps/docs/config/ajp.xml,
      webapps/docs/config/filter.xml,
      webapps/docs/config/http.xml.
    - CVE-2011-4858
    - CVE-2012-0022
 -- Marc Deslauriers <marc.deslauriers at ubuntu.com>   Wed, 25 Jan 2012 09:00:23 -0500

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Title:
  Tomcat needs update to prevent hash function DoS attack

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