CVE-2018-9336

MEDIUM

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.

References

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761

https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24

https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b

https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6

https://www.tenable.com/security/research/tra-2018-09

Details

Source: MITRE

Published: 2018-05-01

Updated: 2018-06-13

Type: CWE-415

Risk Information

CVSS v2.0

Base Score: 4.6

Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH