Double Free Affecting openvpn package, versions [2.4.0,2.4.6)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENVPN-2319217
  • published14 Dec 2021
  • disclosed1 May 2018
  • creditUnknown

Introduced: 1 May 2018

CVE-2018-9336  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade openvpn to version 2.4.6 or higher.

Overview

Affected versions of this package are vulnerable to Double Free 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 Scores

version 3.1