Skip to content
CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2021-3031

PAN-OS: Information exposure in Ethernet data frame construction (Etherleak)

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
palo_alto

Description

Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Palo Alto Networks PAN-OS

  • 8.1 to < 8.1.18affected
  • 9.0 to < 9.0.12affected
  • 9.1 to < 9.1.5affected

Palo Alto Networks PAN-OS

  • 10.0.*unaffected
  • 8.1.18 to < 8.1*unaffected
  • 9.0.12 to < 9.0*unaffected
  • 9.1.5 to < 9.1*unaffected

References