CVE-2020-13943 Affecting tomcat9 package, versions <9.0.38-1
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Test your applications- Snyk ID SNYK-DEBIAN11-TOMCAT9-1017099
- published 13 Oct 2020
- disclosed 12 Oct 2020
Introduced: 12 Oct 2020
CVE-2020-13943 Open this link in a new tabHow to fix?
Upgrade Debian:11 tomcat9 to version 9.0.38-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by Debian.
See How to fix? for Debian:11 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.
References
- https://security-tracker.debian.org/tracker/CVE-2020-13943
- https://security.netapp.com/advisory/ntap-20201016-0007/
- https://www.debian.org/security/2021/dsa-4835
- https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00019.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00021.html