CVE-2018-9336

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761Mailing List, Third Party Advisory
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24Release Notes, Vendor Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79bPatch, Third Party Advisory
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6Release Notes, Third Party Advisory
https://www.tenable.com/security/research/tra-2018-09Exploit, Third Party Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761Mailing List, Third Party Advisory
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24Release Notes, Vendor Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79bPatch, Third Party Advisory
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6Release Notes, Third Party Advisory
https://www.tenable.com/security/research/tra-2018-09Exploit, Third Party Advisory

Timeline

Published: May 1, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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