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

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

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

We recommend that you upgrade your tomcat9 packages.

For the detailed security status of tomcat9 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: https://wiki.debian.org/LTS

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