Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2021-42340
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
- 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:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:14.0.4.13:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:14.1.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:14.1.3.14:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:15.0.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:15.0.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_store_inventory_management:16.0.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:hospitality_cruise_shipboard_property_management_system:20.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:managed_file_transfer:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:managed_file_transfer:12.2.1.4.0:*:*:*:*:*:*:*
- Oracle » Communications Diameter Signaling RouterVersions from including (>=) 8.0.0.0 and up to, including, (<=) 8.5.0.2cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_customer_insights:15.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_customer_insights:16.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_financial_integration:16.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_financial_integration:19.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:payment_interface:19.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:payment_interface:20.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:sd-wan_edge:9.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_eftlink:21.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_data_extractor_for_merchandising:15.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_data_extractor_for_merchandising:16.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:big_data_spatial_and_graph:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:middleware_common_libraries_and_tools:12.2.1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:taleo_platform:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*
Threat overview for CVE-2021-42340
Top countries where our scanners detected CVE-2021-42340
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-42340 140,853
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-42340!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2021-42340
4.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42340
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-42340
-
The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.Assigned by:
- nvd@nist.gov (Primary)
- security@apache.org (Secondary)
References for CVE-2021-42340
-
https://security.gentoo.org/glsa/202208-34
Apache Tomcat: Multiple Vulnerabilities (GLSA 202208-34) — Gentoo securityThird Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Patch;Third Party Advisory
-
https://lists.apache.org/thread.html/r8097a2d1550aa78e585fc77e602b9046e6d4099d8d132497c5387784@%3Ccommits.myfaces.apache.org%3E
[myfaces-tobago] branch tobago-5.x updated: build: workaround for CVE-2021-42340 - Pony MailMailing List;Patch;Vendor Advisory
-
https://www.debian.org/security/2021/dsa-5009
Debian -- Security Information -- DSA-5009-1 tomcat9Third Party Advisory
-
https://lists.apache.org/thread.html/r83a35be60f06aca2065f188ee542b9099695d57ced2e70e0885f905c%40%3Cannounce.tomcat.apache.org%3E
[SECURITY] CVE-2021-42340 Apache Tomcat DoS - Pony MailMailing List;Vendor Advisory
-
https://kc.mcafee.com/corporate/index?page=content&id=SB10379
Security Bulletin - ePolicy Orchestrator update addresses multiple product vulnerabilities (CVE-2022-0842, CVE-2022-0857, CVE-2022-0858, CVE-2022-0859, CVE-2022-0861, CVE-2022-0862) and updates Java,Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20211104-0001/
CVE-2021-42340 Apache Tomcat Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://www.oracle.com/security-alerts/cpujul2022.html
Oracle Critical Patch Update Advisory - July 2022Patch;Third Party Advisory
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