Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openvpn | Openvpn | >= 2.4.0, < 2.4.6 |
| Slackware | Slackware Linux | 13.0 |
Related Weaknesses (CWE)
References
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackMailing ListThird Party Advisory
- https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24Release NotesVendor Advisory
- https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e7PatchThird Party Advisory
- https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6Release NotesThird Party Advisory
- https://www.tenable.com/security/research/tra-2018-09ExploitThird Party Advisory
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackMailing ListThird Party Advisory
- https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24Release NotesVendor Advisory
- https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e7PatchThird Party Advisory
- https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6Release NotesThird Party Advisory
- https://www.tenable.com/security/research/tra-2018-09ExploitThird Party Advisory
FAQ
What is CVE-2018-9336?
CVE-2018-9336 is a vulnerability with a CVSS score of 7.8 (HIGH). 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. T...
How severe is CVE-2018-9336?
CVE-2018-9336 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-9336?
Check the references section above for vendor advisories and patch information. Affected products include: Openvpn Openvpn, Slackware Slackware Linux.