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GHSA-wph7-x527-w3h5

Missing Release of Resource after Effective Lifetime in Apache Tomcat

Source: GitHub Advisory Database (reviewed) High CVE-2021-42340

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.tomcat:tomcat >= 10.1.0-M1, < 10.1.0-M6 10.1.0-M6
Maven org.apache.tomcat:tomcat >= 10.0.0-M1, < 10.0.12 10.0.12
Maven org.apache.tomcat:tomcat >= 9.0.40, < 9.0.54 9.0.54
Maven org.apache.tomcat:tomcat >= 8.5.60, < 8.5.72 8.5.72

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.