CVE-2021-42340
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.
- Affected products
- Alt Linux, Apache Tomcat, Astra Linux, Red Os
- Apache Tomcat
- < 8.5.72, 9.0.54, 10.0.12, 10.0.0, 10.1.0
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 11.0% (95th percentile)
- Weakness
- CWE-772
- NVD status
- Modified
- Published
- 2021-10-14
CVE-2021-42340 at NVD
No indexed exploits for CVE-2021-42340 yet
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No exploit for CVE-2021-42340 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.