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  1. OFBiz
  2. OFBIZ-11848

Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

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      Description

      CVE-2020-11996 Apache Tomcat HTTP/2 Denial of Service

      Severity: Important

      Vendor: The Apache Software Foundation

      Versions Affected:
      Apache Tomcat 10.0.0-M1 to 10.0.0-M5
      Apache Tomcat 9.0.0.M1 to 9.0.35
      Apache Tomcat 8.5.0 to 8.5.55

      Description:
      A specially crafted sequence of HTTP/2 requests could trigger high CPU
      usage for several seconds. If a sufficient number of such requests were
      made on concurrent HTTP/2 connections, the server could become unresponsive.

      Mitigation:

      • Upgrade to Apache Tomcat 10.0.0-M6 or later
      • Upgrade to Apache Tomcat 9.0.36 or later
      • Upgrade to Apache Tomcat 8.5.56 or later

      Credit:
      This issue was reported publicly via the Apache Tomcat Users mailing
      list without reference to the potential for DoS. The DoS risks were
      identified by the Apache Tomcat Security Team.

      References:
      [1] http://tomcat.apache.org/security-10.html
      [2] http://tomcat.apache.org/security-9.html
      [3] http://tomcat.apache.org/security-8.html

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            • Assignee:
              mbrohl Michael Brohl
              Reporter:
              mbrohl Michael Brohl
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              • Created:
                Updated:
                Resolved: