Remote Denial-of-Service Vulnerability in OpenVPN Products
CVE-2017-7521

5.9MEDIUM

Key Information:

Vendor

Openvpn Technologies, Inc

Status
Openvpn
Vendor
CVE Published:
27 June 2017

What is CVE-2017-7521?

Versions of OpenVPN prior to 2.4.3 and 2.3.17 are susceptible to a remote denial-of-service attack stemming from memory leaks and issues related to double-free errors in the extract_x509_extension() function. An attacker can exploit this vulnerability, leading to memory exhaustion, which can disrupt service availability.

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Deploy the Patch

Affected Version(s)

OpenVPN before 2.4.3

OpenVPN before 2.3.17

References

https://community.openvpn.net/openvpn/wiki/Vulnerabilitie...
x_refsource_CONFIRM
http://www.securitytracker.com/id/1038768
vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/99230
vdb-entryx_refsource_BID

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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