Debian Security Advisory

DLA-2495-1 tomcat8 -- LTS security update

Date Reported:
16 Dec 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-17527.
More information:

It was discovered that Apache Tomcat from 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.

For Debian 9 stretch, this problem has been fixed in version 8.5.54-0+deb9u5.

We recommend that you upgrade your tomcat8 packages.

For the detailed security status of tomcat8 please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: