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 breakdown
Affected products
- Palo Alto Networks / pan-os10.2.* – 10.2.*
- Palo Alto Networks / pan-os8.1 – 8.1.22
- Palo Alto Networks / pan-os9.1 – 9.1.13
- Palo Alto Networks / pan-os10.1 – 10.1.5
- Palo Alto Networks / pan-os10.0 – 10.0.10
- Palo Alto Networks / pan-os9.0 – 9.0.16
- Palo Alto Networks / Prisma Access3.0 Preferred, Innovation – 3.0 Preferred, Innovation
- Palo Alto Networks / Prisma Access2.2 Preferred – 2.2 Preferred
- Palo Alto Networks / Prisma Access2.1 Preferred, Innovation – 2.1 Preferred, Innovation