CVE-2021-42340

Aliases:GHSA-wph7-x527-w3h5BIT-tomcat-2021-42340
Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 14 Oct 2021, 19:55
Last modified:04 Aug 2024, 03:30

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
4.28% LOW
4% probability -1.42%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

14 Oct 2021, 19:55
Published
Vulnerability first disclosed
04 Aug 2024, 03:30
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.28%• Percentile: 89%

Techniques & Countermeasures

  • CWE-772•Missing Release of Resource after Effective Lifetime

    The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

Affected Systems

  • apache software foundation•apache tomcat

    Apache Tomcat 10 10.0.0-M10 to 10.0.11 | Apache Tomcat 10 10.1.0-M1 to 10.1.0-M5 | Apache Tomcat 9 9.0.40 to 9.0.53 | Apache Tomcat 8 8.5.60 to 8.5.71

  • Unknown•Tomcat

    ≥ 8.5.60, < 8.5.72 | ≥ 9.0.40, < 9.0.54 | ≥ 10.0.1, < 10.0.12 | 10.0.0:milestone10 | 10.1.0:milestone1 | 10.1.0:milestone2 | 10.1.0:milestone3 | 10.1.0:milestone4 | 10.1.0:milestone5

  • debian•debian_linux

    11.0

  • org.apache.tomcat•tomcat

    ≥ 10.1.0-M1, < 10.1.0-M6 | ≥ 10.0.0-M1, < 10.0.12 | ≥ 9.0.40, < 9.0.54 | ≥ 8.5.60, < 8.5.72

  • netapp•hci

    na

  • netapp•management_services_for_element_software

    na

  • oracle•agile_engineering_data_management

    6.2.1.0

  • oracle•big_data_spatial_and_graph

    < 23.1

  • oracle•communications_diameter_signaling_router

    ≥ 8.0.0.0, ≤ 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

References (20)