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.
https://lists.apache.org/thread.html/[email protected]%3Ccommits.myfaces.apache.org%3E
https://www.debian.org/security/2021/dsa-5009
https://security.netapp.com/advisory/ntap-20211104-0001/
https://www.oracle.com/security-alerts/cpujan2022.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10379
https://www.oracle.com/security-alerts/cpuapr2022.html
Source: MITRE
Published: 2021-10-14
Updated: 2022-10-27
Type: CWE-772
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH