Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-42340

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
14/10/2021
Last modified:
07/11/2023

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 8.5.60 (including) 8.5.72 (excluding)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 9.0.40 (including) 9.0.54 (excluding)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 10.0.1 (including) 10.0.12 (excluding)
cpe:2.3:a:apache:tomcat:10.0.0:milestone10:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:*
cpe:2.3:a:netapp:hci:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:big_data_spatial_and_graph:*:*:*:*:*:*:*:* 23.1 (excluding)
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* 8.0.0.0 (including) 8.5.0.2 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools