CVE-2018-9336MEDIUM
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 v2.0
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
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 | medium |
| 123212 | openSUSE Security Update : openvpn (openSUSE-2019-507) | Nessus | SuSE Local Security Checks | medium |
| 120034 | SUSE SLED15 / SLES15 Security Update : openvpn (SUSE-SU-2018:1888-1) | Nessus | SuSE Local Security Checks | medium |
| 110961 | openSUSE Security Update : openvpn (openSUSE-2018-705) | Nessus | SuSE Local Security Checks | medium |
| 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 | medium |