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.

Remediation

References

CVE-2021-42340

Related Vulnerabilities

WordPress Plugin Klaviyo Cross-Site Scripting (3.0.9)

WordPress Plugin WPBakery Page Builder Clipboard Cross-Site Scripting (4.5.5)

Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2012-6098)

Apache Traffic Server Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') Vulnerability (CVE-2021-27577)

Coppermine Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-3923)

Severity

High

Classification

CVE-2021-42340 CWE-772 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Tags

Missing Update Known Vulnerabilities