Use After Free in Openvpn Access Server
CVE-2023-46850
Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to undefined behavoir, leaking memory buffers or remote execution when sending network buffers to a remote peer.
Vulnerability class: Use-After-Free
EPSS: 0.020 (78.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openvpn Access Server — versions 2.11.0, 2.12.0
- Openvpn
- Openvpn 2 (Community) — versions 2.6.0
- Openvpn Openvpn_access_server
- Debian Debian_linux — versions 12.0
- Fedoraproject Fedora — versions 39
Weakness classification (CWE)
References
- security@openvpn.net (Vendor Advisory)
- security@openvpn.net (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-46850?
- CVE-2023-46850 is a critical-severity vulnerability in Openvpn Access Server, classified under Use After Free. CVSS score: 9.8/10. Published 2023-11-11.
- How severe is CVE-2023-46850?
- Critical severity. CVSS v3 base score is 9.8 out of 10.