Resource Exhaustion Affecting tomcat-el-3_0-api package, versions <9.0.21-3.27.1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High
Expand this section
NVD
7.5 high
Expand this section
Red Hat
7.5 high
Expand this section
SUSE
7.5 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-SLES150-TOMCATEL30API-2741760
  • published 14 Apr 2022
  • disclosed 12 Jul 2019

How to fix?

Upgrade SLES:15.0 tomcat-el-3_0-api to version 9.0.21-3.27.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-el-3_0-api package and not the tomcat-el-3_0-api package as distributed by SLES:15.0. See How to fix? for SLES:15.0 relevant fixed versions and status.

The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.