title: PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation
description: A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.
problem types: CWE-134 Use of Externally-Controlled Format String
affected:
{
platforms: PA-7000 series with LFC
product: PAN-OS
vendor: Palo Alto Networks
versions:
changes: [at: 9.0.7, status: unaffected], lessThan: 9.0.7, status: affected, version: 9.0, versionType: custom
changes: [at: 9.1.2, status: unaffected], lessThan: 9.1.2, status: affected, version: 9.1, versionType: custom
}
{
product: PAN-OS
vendor: Palo Alto Networks
versions:
status: unaffected, version: 8.1.*
status: unaffected, version: 8.0.*
status: unaffected, version: 7.1.*
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
solutions: This issue is fixed in PAN-OS 9.0.7, PAN-OS 9.1.2 and all later versions.
workarounds: There are no viable workarounds for this issue.