Vulnerability Monitor

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CVE-2021-3690


A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability.


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 8 products from redhat, from redhat, from redhat and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, 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

2022-08-23T16:15:09.450

Last Modified

2024-11-21T06:22:09.833

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-401

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application redhat fuse 1.0 Yes
Application redhat integration_camel_k - Yes
Application redhat integration_camel_quarkus - Yes
Application redhat jboss_enterprise_application_platform - Yes
Application redhat openshift_application_runtimes - Yes
Application redhat single_sign-on - Yes
Application redhat undertow < 2.0.40 Yes
Application redhat undertow < 2.2.10 Yes
Application redhat jboss_enterprise_application_platform 7.3 Yes
Operating System redhat enterprise_linux 6.0 No
Operating System redhat enterprise_linux 7.0 No
Operating System redhat enterprise_linux 8.0 No
Application redhat jboss_enterprise_application_platform 7.4 Yes
Operating System redhat enterprise_linux 7.0 No
Operating System redhat enterprise_linux 8.0 No

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 redhat'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.