CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. It affects Apache. Its EPSS score suggests a 11.0% probability of exploitation in the next 30 days. It may lead to a denial-of-service condition.
CVE
CVE-2021-42340
Severity
HIGH
CVSS
7.5
EPSS
11.00%
Apache
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)