Improper input validation in OpenVPN for Windows - CVE-2017-7522

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Main Vulnerability Database Vulnerabilities #VU7141

Improper input validation in OpenVPN for Windows - CVE-2017-7522

Published: June 21, 2017


Vulnerability identifier: #VU7141
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7522
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OpenVPN
Affected software:
OpenVPN for Windows

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when processing --x509-track attribute within mbedtls. A remote authenticated attacker can perform denial of service (DoS) attack.


How to mitigate CVE-2017-7522

Update OpenVPN to version 2.4.3.

Sources