Launch Week Day 1: Announcing Security Design Review
HIGH 7.5 Maven

Missing Release of Resource after Effective Lifetime in Apache Tomcat

GHSA-wph7-x527-w3h5 · BIT-tomcat-2021-42340 · CVE-2021-42340

Published · Modified

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.

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