Vulnerability Description
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openvpn | Openvpn | >= 2.6.0, <= 2.6.6 |
| Openvpn | Openvpn Access Server | >= 2.11.0, <= 2.11.3 |
| Debian | Debian Linux | 12.0 |
| Fedoraproject | Fedora | 39 |
Related Weaknesses (CWE)
References
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46849Vendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-468Vendor Advisory
- https://www.debian.org/security/2023/dsa-5555Third Party Advisory
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46849Vendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-468Vendor Advisory
- https://www.debian.org/security/2023/dsa-5555Third Party Advisory
FAQ
What is CVE-2023-46849?
CVE-2023-46849 is a vulnerability with a CVSS score of 7.5 (HIGH). Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a...
How severe is CVE-2023-46849?
CVE-2023-46849 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-46849?
Check the references section above for vendor advisories and patch information. Affected products include: Openvpn Openvpn, Openvpn Openvpn Access Server, Debian Debian Linux, Fedoraproject Fedora.