VulnerabilityModified

CVE-2021-3048

If the firewall then restarts, it results in a denial-of-service (DoS) condition and the firewall stops processing traffic.

MEDIUM 5.9EPSS 0.84%

Does this matter?

Lower severity and a low EPSS score (0.84%). Track it; it rarely justifies an emergency change on its own.

Description

Certain invalid URL entries contained in an External Dynamic List (EDL) cause the Device Server daemon (devsrvr) to stop responding. This condition causes subsequent commits on the firewall to fail and prevents administrators from performing commits and configuration changes even though the firewall remains otherwise functional. If the firewall then restarts, it results in a denial-of-service (DoS) condition and the firewall stops processing traffic. This issue impacts: 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. PAN-OS 8.1 and PAN-OS 10.1 versions are not impacted.

CVSS 3.1: 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.84% probability · 56th percentile
CISA KEV: Not listed
Weakness: CWE-20
Affected: paloaltonetworks/pan-os
Source: psirt@paloaltonetworks.com

References

https://security.paloaltonetworks.com/CVE-2020-3048Broken Link
https://security.paloaltonetworks.com/CVE-2021-3048Vendor Advisory
https://security.paloaltonetworks.com/CVE-2020-3048Broken Link

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.