title: PAN-OS: Exceptional Condition Denial-of-Service (DoS)
description: An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.
problem types: CWE-755 Improper Handling of Exceptional Conditions
affected:
{
product: PAN-OS
vendor: Palo Alto Networks
versions:
status: unaffected, version: 10.1.*
changes: [at: 8.1.20, status: unaffected], lessThan: 8.1.20, status: affected, version: 8.1, versionType: custom
changes: [at: 9.0.14, status: unaffected], lessThan: 9.0.14, status: affected, version: 9.0, versionType: custom
changes: [at: 9.1.9, status: unaffected], lessThan: 9.1.9, status: affected, version: 9.1, versionType: custom
changes: [at: 10.0.5, status: unaffected], lessThan: 10.0.5, status: affected, version: 10.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
exploits: Palo Alto Networks is not aware of any malicious exploitation of this issue.
solutions: This issue is fixed in PAN-OS 8.1.20, PAN-OS 9.0.14, PAN-OS 9.1.9, PAN-OS 10.0.5, and all later PAN-OS versions.
workarounds: There are no known workarounds for this issue.