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CVE-2021-42340

nvd nist
Published: Oct 14, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: 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.

Affected (37)

Show all products
1 product
Tomcat
2 products
Hci
1 product
Debian Linux
14 products
Agile Engineering Data Management
Big Data Spatial And Graph
Managed File Transfer
Payment Interface
Retail Customer Insights
Retail Eftlink
Retail Financial Integration
Retail Store Inventory Management
Sd Wan Edge
Taleo Platform
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Apache
From 10.0.1 to 10.0.12
From 8.5.60 to 8.5.72
From 9.0.40 to 9.0.54
Version 10.0.0 milestone10
Version 10.1.0 milestone1
Version 10.1.0 milestone2
Version 10.1.0 milestone3
Version 10.1.0 milestone4
Version 10.1.0 milestone5
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
All versions
All versions
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Version 11.0
Configuration D
25 vulnerable

References (18)

Source: security@apache.org
Third Party Advisory
Source: security@apache.org
Third Party Advisory
Source: security@apache.org
Third Party Advisory
Source: security@apache.org
Third Party Advisory
Source: security@apache.org
PatchThird Party Advisory
Source: security@apache.org
PatchThird Party Advisory
Source: security@apache.org
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory

Timeline

No history available yet.