CVE-2021-42340
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Tomcat
PublishedOct 14, 2021
First seenOct 14, 2021
Weakness typeCWE-772CWE-772
How to fix
Update
- apache tomcat8.5.72, 9.0.54, 10.0.12 or later
- oracle big_data_spatial_and_graph23.1 or later
- org.apache.tomcat:tomcat10.1.0-M6, 10.0.12, 9.0.54, 8.5.72 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 8.5.60 ≤ v < 8.5.72, 9.0.40 ≤ v < 9.0.54, 10.0.1 ≤ v < 10.0.12, 10.0.0, 10.1.0 | 8.5.72, 9.0.54, 10.0.12 |
| netapp hci | No range specified | — |
| netapp management_services_for_element_software | No range specified | — |
| debian debian_linux | 11.0 | — |
| oracle agile_engineering_data_management | 6.2.1.0 | — |
| oracle big_data_spatial_and_graph | v < 23.1 | 23.1 |
| oracle communications_diameter_signaling_router | 8.0.0.0 ≤ v ≤ 8.5.0.2 | — |
| oracle hospitality_cruise_shipboard_property_management_system | 20.1.0 | — |
| oracle managed_file_transfer | 12.2.1.3.0, 12.2.1.4.0 | — |
| oracle middleware_common_libraries_and_tools | 12.2.1.4.0 | — |
| oracle payment_interface | 19.1, 20.3 | — |
| oracle retail_customer_insights | 15.0.2, 16.0.2 | — |
| oracle retail_data_extractor_for_merchandising | 15.0.2, 16.0.2 | — |
| oracle retail_eftlink | 21.0.0 | — |
| oracle retail_financial_integration | 16.0.1, 19.0.0 | — |
| oracle retail_store_inventory_management | 14.0.4.13, 14.1.3.5, 14.1.3.14, 15.0.3.3, 15.0.3.8, 16.0.3.7 | — |
| oracle sd-wan_edge | 9.0, 9.1 | — |
| oracle taleo_platform | No range specified | — |
| org.apache.tomcat:tomcatMaven | 10.1.0-M1 ≤ v < 10.1.0-M6, 10.0.0-M1 ≤ v < 10.0.12, 9.0.40 ≤ v < 9.0.54, 8.5.60 ≤ v < 8.5.72 | 10.1.0-M6, 10.0.12, 9.0.54, 8.5.72 |
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