CVE-2020-15078
High
Description
OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Openvpn
PublishedApr 26, 2021
First seenApr 26, 2021
Weakness typeCWE-305CWE-305
How to fix
Update
- openvpn openvpn2.4.11, 2.5.2 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
- security.gentoo.org/glsa/202105-25
- usn.ubuntu.com/usn/usn-4933-1
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openvpn openvpn | v < 2.4.11, 2.5.0 ≤ v < 2.5.2 | 2.4.11, 2.5.2 |
| fedoraproject fedora | 32, 33, 34 | — |
| canonical ubuntu_linux | 18.04, 20.04, 20.10, 21.04 | — |
| debian debian_linux | 9.0 | — |
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