CVE-2017-7479

Description

OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.43% Top 25%
Vendor Advisory debian.org Vendor Advisory openvpn.net
Affected: OpenVPN Technologies, Inc openvpn
Published at:
Updated at:

References

Link Tags
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits vendor advisory
http://www.securitytracker.com/id/1038473 vdb entry
http://www.debian.org/security/2017/dsa-3900 vendor advisory
http://www.securityfocus.com/bid/98443 vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-7479?
CVE-2017-7479 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7479?
To fix CVE-2017-7479, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7479 being actively exploited in the wild?
It is possible that CVE-2017-7479 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7479?
CVE-2017-7479 affects OpenVPN Technologies, Inc openvpn.
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