Improper input validation in OpenVPN for Windows - CVE-2017-7508

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Main Vulnerability Database Vulnerabilities #VU7144

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: 8.7 [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]
CVE-ID: CVE-2017-7508
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

OpenVPN for Windows

Arch Linux
Debian Linux
Amazon Linux AMI
Fedora
SUSE Linux
Slackware Linux
Ubuntu
Opensuse
openvpn

How to mitigate CVE-2017-7508

Update OpenVPN to version 2.4.3.

openvpn - addressed in versions 2.3.17-1.fc24, 2.4.3-1.el6, 2.4.3-1.el7, 2.4.3-1.fc25, 2.4.3-1.fc26

External References

Related Security Bulletins