Vulnerability CVE-2017-7478
Published: 2017-05-15

Description:
OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
OpenVPN 2.4.0 - Unauthenticated Denial of Service
QuarksLab
12.05.2017

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Openvpn -> Openvpn 

 References:
http://www.securityfocus.com/bid/98444
http://www.securitytracker.com/id/1038473
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
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