CVE-2018-9336high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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
Details
Source: MITRE
Published: 2018-05-01
Updated: 2018-06-13
Type: CWE-415
Risk Information
CVSS v2
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
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
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
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:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 125263 | OpenVPN 2.4.x < 2.4.6 Denial of Service Vulnerability (Windows) | Nessus | Windows | high |
| 123212 | openSUSE Security Update : openvpn (openSUSE-2019-507) | Nessus | SuSE Local Security Checks | high |
| 120034 | SUSE SLED15 / SLES15 Security Update : openvpn (SUSE-SU-2018:1888-1) | Nessus | SuSE Local Security Checks | high |
| 110961 | openSUSE Security Update : openvpn (openSUSE-2018-705) | Nessus | SuSE Local Security Checks | high |
| 109362 | Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : openvpn (SSA:2018-116-01) | Nessus | Slackware Local Security Checks | high |