RHSA-2020:4004HighCVSS 7.5

Red Hat Security Advisory: tomcat security and bug fix update

Published
September 29, 2020
Last Modified
August 4, 2026

🔗 CVE IDs covered (2)

CVE-2019-17563 →CVE-2020-13935 →

📋 Description

CVE-2019-17563 — tomcat: Session fixation when using FORM authentication CVE-2020-13935 — tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS

🎯 Affected products58

  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux Client Optional (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Server Optional (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)
  • Red Hat Enterprise Linux Workstation Optional (v. 7)
  • tomcat-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • tomcat-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • tomcat-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server (v. 7)
  • tomcat-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • tomcat-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • tomcat-0:7.0.76-15.el7.src as a component of Red Hat Enterprise Linux Client (v. 7)
  • tomcat-0:7.0.76-15.el7.src as a component of Red Hat Enterprise Linux ComputeNode (v. 7)
  • tomcat-0:7.0.76-15.el7.src as a component of Red Hat Enterprise Linux Server (v. 7)
  • tomcat-0:7.0.76-15.el7.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • tomcat-admin-webapps-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • tomcat-admin-webapps-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • tomcat-admin-webapps-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server (v. 7)
  • tomcat-admin-webapps-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • tomcat-admin-webapps-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • tomcat-docs-webapp-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • tomcat-docs-webapp-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • tomcat-docs-webapp-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • tomcat-docs-webapp-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)
  • tomcat-el-2.2-api-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • tomcat-el-2.2-api-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • tomcat-el-2.2-api-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server (v. 7)
  • tomcat-el-2.2-api-0:7.0.76-15.el7.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • +28 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

🔗 References (11)