Resource Exhaustion Affecting jws5-tomcat-jsp-2.3-api package, versions <0:9.0.36-6.redhat_5.2.el7jws


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.96% (84th percentile)

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  • Snyk IDSNYK-RHEL7-JWS5TOMCATJSP23API-3497818
  • published26 Jul 2021
  • disclosed25 Jun 2020

Introduced: 25 Jun 2020

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

How to fix?

Upgrade RHEL:7 jws5-tomcat-jsp-2.3-api to version 0:9.0.36-6.redhat_5.2.el7jws or higher.
This issue was patched in RHSA-2020:5170.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jws5-tomcat-jsp-2.3-api package and not the jws5-tomcat-jsp-2.3-api package as distributed by RHEL. See How to fix? for RHEL:7 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 Scores

version 3.1