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CVE-2021-42340

Description

The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.


Affected Package


OS OS Version Package Name Package Version
Debian 12 tomcat9 9.0.54-1
Debian 11 tomcat9 9.0.43-2~deb11u3
Debian 10 tomcat9 9.0.31-1~deb10u6
Debian 999 tomcat9 9.0.54-1

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