Advisory Database
  • Advisories
  • Dependency Scanning
  1. maven
  2. ›
  3. io.undertow/undertow-core
  4. ›
  5. CVE-2021-3690

CVE-2021-3690: Uncontrolled Resource Consumption

August 23, 2022 (updated July 7, 2023)

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.

References

  • access.redhat.com/security/cve/CVE-2021-3690
  • access.redhat.com/security/cve/cve-2021-3690
  • bugzilla.redhat.com/show_bug.cgi?id=1991299
  • github.com/advisories/GHSA-fj7c-vg2v-ccrm
  • github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
  • issues.redhat.com/browse/UNDERTOW-1935
  • nvd.nist.gov/vuln/detail/CVE-2021-3690
  • www.mend.io/vulnerability-database/CVE-2021-3690

Code Behaviors & Features

Detect and mitigate CVE-2021-3690 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 2.0.40, all versions starting from 2.1.0 before 2.2.10

Fixed versions

  • 2.0.40.Final
  • 2.2.10.Final

Solution

Upgrade to versions 2.0.40.Final, 2.2.10.Final or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-401: Missing Release of Memory after Effective Lifetime

Source file

maven/io.undertow/undertow-core/CVE-2021-3690.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Wed, 14 May 2025 12:15:46 +0000.