Resource Exhaustion Affecting tomcat8 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
26.7% (98th percentile)

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  • Snyk IDSNYK-UBUNTU1804-TOMCAT8-1147374
  • published22 Aug 2025
  • disclosed26 Jun 2020

Introduced: 26 Jun 2020

CVE-2020-11996  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 tomcat8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat8 package and not the tomcat8 package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 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.

References

CVSS Base Scores

version 3.1