Denial of service in OpenVPN



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-9336
CWE-ID CWE-415
Exploitation vector Network
Public exploit N/A
Vulnerable software
 OpenVPN for Windows
Client/Desktop applications / Software for system administration

Vendor OpenVPN

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Double free memory error

EUVDB-ID: #VU12129

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-9336

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to double-free memory error in Interactive Service. A remote attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update to version 2.4.6.

Vulnerable software versions

OpenVPN for Windows: 2.4.0 - 2.4.5

CPE2.3 External links

https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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