OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().

Related CVEs

CVE-2017-7521

Key Information

GHSA ID

GHSA-mmxr-6344-9fv5

Published

May 13, 2022 1:47 AM

Last Modified

May 13, 2022 1:47 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 29, 2025 6:31 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.