CVE-2020-13943 Affecting tomcat-el-3_0-api package, versions <9.0.36-3.74.1



    Attack Complexity Low
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4.3 medium
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5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-SLES150-TOMCATEL30API-2691860
  • published 14 Apr 2022
  • disclosed 7 Jan 2021

How to fix?

Upgrade SLES:15.0 tomcat-el-3_0-api to version 9.0.36-3.74.1 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.

If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.