Improper input validation in OpenVPN for Windows - CVE-2017-7508
Published: June 21, 2017 / Updated: June 22, 2017
Vulnerability identifier: #VU7144
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-7508
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenVPN
Affected software:
OpenVPN for Windows
OpenVPN for Windows
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due assertion failure when processing IPv6 packets. A remote attacker can send a specially crafted IPv6 packet and perform a denial of service (DoS) attack.
How to mitigate CVE-2017-7508
Update OpenVPN to version 2.4.3.