OpenVPN CVE-2017-7479 Denial of Service Vulnerability

Bugtraq ID:	98443
Class:	Failure to Handle Exceptional Conditions
CVE:	CVE-2017-7479
Remote:	Yes
Local:	No
Published:	May 11 2017 12:00AM
Updated:	Jul 04 2017 08:05AM
Credit:	Quarkslab
Vulnerable:	Ubuntu Ubuntu Linux 17.04 SuSE Suse Linux Enterprise Server 11-SECURITY OpenVPN OpenVPN 2.4.1 OpenVPN OpenVPN 2.4 OpenVPN OpenVPN 2.3.14 OpenVPN OpenVPN 2.3.13 OpenVPN OpenVPN 2.3.12 OpenVPN OpenVPN 2.3.6 OpenVPN OpenVPN 2.3.5 OpenVPN OpenVPN 2.3.3 OpenVPN OpenVPN 2.3.1 OpenVPN OpenVPN 2.3 OpenVPN OpenVPN 2.3.4 OpenVPN OpenVPN 2.2.3 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:	OpenVPN OpenVPN 2.4.2 OpenVPN OpenVPN 2.3.15

OpenVPN CVE-2017-7479 Denial of Service Vulnerability

OpenVPN is prone to a denial-of-service vulnerability.

Attackers can exploit this issue to crash the affected server, denying service to legitimate users.

Versions prior to OpenVPN 2.4.2 and 2.3.15 are vulnerable.

OpenVPN CVE-2017-7479 Denial of Service Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

OpenVPN CVE-2017-7479 Denial of Service Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

OpenVPN CVE-2017-7479 Denial of Service Vulnerability

References:

• Bug 1038711 - (CVE-2017-7479) VUL-0: CVE-2017-7479: openvpn: Denial of Service d (Novell)
  
• OpenVPN Homepage (OpenVPN)
  
• Quarkslab findings (OpenVPN)