OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-7508 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue does not affect Red Hat Enterprise Linux 5, 6 and 7 as OpenVPN is not included in any of Red Hat's supported products.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 7.5 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | None |
Availability Impact | High |