CVE-2022-22171

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions 19.4R1 through 19.4R3-S6 Juniper Networks Junos OS versions 20.1 through 20.1R3-S2 Juniper Networks Junos OS versions 20.2 through 20.2R3-S2 Juniper Networks Junos OS versions 20.3 through 20.3R3-S1 Juniper Networks Junos OS versions 20.4 through 20.4R3 Juniper Networks Junos OS versions 21.1 through 21.1R2 Juniper Networks Junos OS versions 21.2 through 21.2R1 Juniper Networks Junos OS versions 21.3 through 21.3R1

Description The issue is related to an Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS. This allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN, which causes the PFE to reset.

Recommendations For Juniper Networks Junos OS version 19.4, update to version 19.4R3-S7 or later. For Juniper Networks Junos OS version 20.1, update to version 20.1R3-S3 or later. For Juniper Networks Junos OS version 20.2, update to version 20.2R3-S3 or later. For Juniper Networks Junos OS version 20.3, update to version 20.3R3-S2 or later. For Juniper Networks Junos OS version 20.4, update to version 20.4R3-S1 or later. For Juniper Networks Junos OS version 21.1, update to version 21.1R3 or later. For Juniper Networks Junos OS version 21.2, update to version 21.2R2 or later. For Juniper Networks Junos OS version 21.3, update to version 21.3R1-S1 or later, or version 21.3R2 or later.