A tomcat9 security update has been released for Debian GNU/Linux 10 to address several vulnerabilities were discovered in the Tomcat servlet and JSP engine, which could result in code execution or denial of service.

DSA 4627-1: tomcat9 security update

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Debian Security Advisory DSA-4727-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
July 17, 2020   https://www.debian.org/security/faq
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Package : tomcat9
CVE ID : CVE-2020-9484 CVE-2020-11996 CVE-2020-13934 CVE-2020-13935

Several vulnerabilities were discovered in the Tomcat servlet and JSP
engine, which could result in code execution or denial of service.

For the stable distribution (buster), these problems have been fixed in
version 9.0.31-1~deb10u2.

We recommend that you upgrade your tomcat9 packages.

For the detailed security status of tomcat9 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/tomcat9

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/