Double Free in Openvpn

CVE-2018-9336

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 thr…

Vulnerability class: Double Free

EPSS: 0.006 (45.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory, Release Notes)
  • cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SLACKWARE)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2018-9336?
CVE-2018-9336 is a high-severity vulnerability in Openvpn, classified under Double Free. CVSS score: 7.8/10. Published 2018-05-01.
How severe is CVE-2018-9336?
High severity. CVSS v3 base score is 7.8 out of 10.