Palo Alto Networks is aware of recent vulnerability disclousre, known as SegmentSmack, that affects Linux kernel 4.9 and later. At this time, our findings show that Palo Alto Networks PAN-OS devices are not vulnerable to this disclosure (CVE-2018-5390).
PAN-OS/Panorama platforms are not impacted by this vulnerability.
CVSSv3.1 Base Score: 0 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N)
Our NGFW users can use the configuration option bypass-exceed-oo-queue with value no which will provide protection from CVE-2018-5390 for devices positioned behind the firewall. For more information on configuration, please refer to the Best Practices for Securing Your Network from Layer 4 and Layer 7 Evasions document: https://www.paloaltonetworks.com/documentation/61/pan-os/pan-os/threat-prevention/best-practices-for-securing-your-network-from-layer-4-and-layer-7-evasions .