Vulnerability Description
An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.22; PAN-OS 9.0 versions earlier than PAN-OS 9.0.16; PAN-OS 9.1 versions earlier than PAN-OS 9.1.13; PAN-OS 10.0 versions earlier than PAN-OS 10.0.10; PAN-OS 10.1 versions earlier than PAN-OS 10.1.5. This issue does not impact PAN-OS 10.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Paloaltonetworks | Pan-Os | >= 8.1.0, < 8.1.22 |
Related Weaknesses (CWE)
References
- https://security.paloaltonetworks.com/CVE-2022-0023Vendor Advisory
- https://security.paloaltonetworks.com/CVE-2022-0023Vendor Advisory
FAQ
What is CVE-2022-0023?
CVE-2022-0023 is a vulnerability with a CVSS score of 5.9 (MEDIUM). An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically craf...
How severe is CVE-2022-0023?
CVE-2022-0023 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-0023?
Check the references section above for vendor advisories and patch information. Affected products include: Paloaltonetworks Pan-Os.