Vulnerability Monitor

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CVE-2020-13934


An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 14 products from apache, from debian, from netapp and 11 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2020-07-14T15:15:11.007

Last Modified

2024-11-21T05:02:10.717

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-401
    CWE-476

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache tomcat ≤ 8.5.56 Yes
Application apache tomcat ≤ 9.0.36 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 9.0.0 Yes
Application apache tomcat 10.0.0 Yes
Application apache tomcat 10.0.0 Yes
Application apache tomcat 10.0.0 Yes
Application apache tomcat 10.0.0 Yes
Application apache tomcat 10.0.0 Yes
Application apache tomcat 10.0.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
Application netapp oncommand_system_manager ≤ 3.1.3 Yes
Operating System opensuse leap 15.1 Yes
Operating System opensuse leap 15.2 Yes
Operating System canonical ubuntu_linux 20.04 Yes
Application oracle agile_engineering_data_management 6.2.1.0 Yes
Application oracle agile_plm 9.3.3 Yes
Application oracle agile_plm 9.3.5 Yes
Application oracle agile_plm 9.3.6 Yes
Application oracle communications_instant_messaging_server 10.0.1.5.0 Yes
Application oracle fmw_platform 12.2.1.3.0 Yes
Application oracle fmw_platform 12.2.1.4.0 Yes
Application oracle instantis_enterprisetrack 17.1 Yes
Application oracle instantis_enterprisetrack 17.2 Yes
Application oracle instantis_enterprisetrack 17.3 Yes
Application oracle managed_file_transfer 12.2.1.3.0 Yes
Application oracle managed_file_transfer 12.2.1.4.0 Yes
Application oracle mysql_enterprise_monitor ≤ 8.0.21 Yes
Application oracle siebel_ui_framework ≤ 20.12 Yes
Application oracle workload_manager 12.2.0.1 Yes
Application oracle workload_manager 18c Yes
Application oracle workload_manager 19c Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.