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Apache Tomcat: Important: Denial of Service (CVE-2021-42340)

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Apache Tomcat: Important: Denial of Service (CVE-2021-42340)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/15/2021
Created
10/16/2021
Added
10/15/2021
Modified
10/15/2021

Description

The fix for bug 63362 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the WebSocket connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.

Solution(s)

  • apache-tomcat-upgrade-0_0_12
  • apache-tomcat-upgrade-8_5_72
  • apache-tomcat-upgrade-9_0_54

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