critical9.8
CVE-2022-0547
OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred auth…
Impact
OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openvpn | Openvpn | from 2.1.0 before 2.4.12 from 2.5.0 before 2.5.6 |
| Fedoraproject | Fedora | Versions 34, 36 |
| Debian | Debian Linux | Version 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
- https://openvpn.net/community-downloads/
- https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
- https://openvpn.net/community-downloads/