A tomcat9 regression update has been released for Debian GNU/Linux 10 LTS to address a regression introduced by the previous update.

[SECURITY] [DLA 3617-2] tomcat9 regression update

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Debian LTS Advisory DLA-3617-2 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
October 17, 2023 https://wiki.debian.org/LTS
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Package : tomcat9
Version : 9.0.31-1~deb10u10
CVE ID : CVE-2023-44487

A regression was discovered in the Http2UpgradeHandler class of Tomcat 9
introduced by the patch to fix CVE-2023-44487 (Rapid Reset Attack). A wrong
value for the overheadcount variable forced HTTP2 connections to close early.

For Debian 10 buster, this problem has been fixed in version
9.0.31-1~deb10u10.

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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS