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OpenVPN DoS Vulnerability (Windows)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

OpenVPN is prone to a Denial of Service vulnerability.

Insight

Insight

openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6 allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service. This could cause a denial-of-service through memory corruption or possibly have unspecified other impact including privilege escalation.

Affected Software

Affected Software

OpenVPN version 2.4.x before 2.4.6.

Detection Method

Detection Method

The script checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to OpenVPN version 2.4.6 or later.

Common Vulnerabilities and Exposures (CVE)