PT-2023-11564 · Openvpn · Openvpn

Null001 · Published 2023-08-22 · Updated 2024-10-07 · CVE-2020-20813

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.4.7 and earlier

Description The issue allows remote attackers to cause a denial of service via crafted reset packets. This is related to the Control Channel in OpenVPN.

Recommendations For OpenVPN versions 2.4.7 and earlier, update to a version later than 2.4.7 to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2020-20813

Affected Products

Openvpn

References · 8

• https://osv.dev/vulnerability/CVE-2020-20813 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-20813 · Security Note
• https://ubuntu.com/security/CVE-2020-20813 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-20813 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-20813 · Vendor Advisory
• https://t.me/cvenotify/57105 · Telegram Post
• https://freebuf.com/vuls/215171.html · Note
• https://t.me/cibsecurity/69023 · Telegram Post