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CVE-2018-9336 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24	CVE	Release NotesVendor Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b	CVE	PatchThird Party Advisory
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6	CVE	Release NotesThird Party Advisory
https://www.tenable.com/security/research/tra-2018-09	CVE	ExploitThird Party Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761	CVE	Mailing ListThird Party Advisory
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24	[email protected]	Release NotesVendor Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b	[email protected]	PatchThird Party Advisory
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6	[email protected]	Release NotesThird Party Advisory
https://www.tenable.com/security/research/tra-2018-09	[email protected]	ExploitThird Party Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761	[email protected]	Mailing ListThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-415	Double Free	[email protected]

Affected Products

Product	Versions
openvpn openvpn	>= 2.4.0, < 2.4.6
CPE cpe:2.3:a:openvpn:openvpn:::::::: Remediation No remediation found in references.
slackware slackware linux	13.0 13.1 13.37 14.0 14.1
CPE cpe:2.3:o:slackware:slackware_linux:13.0:::::::* cpe:2.3:o:slackware:slackware_linux:13.1:::::::* cpe:2.3:o:slackware:slackware_linux:13.37:::::::* cpe:2.3:o:slackware:slackware_linux:14.0:::::::* cpe:2.3:o:slackware:slackware_linux:14.1:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jun 13, 2018	Initial Analysis	[email protected]
May 6, 2018	CVE Modified	[email protected]
May 2, 2018	CVE Modified	[email protected]