A Race Condition in the 'show chassis pic' command in Juniper Networks Junos OS Evolved may allow an attacker to crash the port interface concentrator daemon (picd) process on the FPC, if the command is executed coincident with other system events outside the attacker's control, leading to a Denial of Service (DoS) condition. Continued execution of the CLI command, under precise conditions, could create a sustained Denial of Service (DoS) condition. This issue affects all Juniper Networks Junos OS Evolved versions prior to 20.1R2-EVO on PTX10003 and PTX10008 platforms. Junos OS is not affected by this vulnerability.
The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.1R2-EVO, 20.2R1-EVO, and all subsequent releases.
Use access lists or firewall filters to limit access to the router via CLI only from trusted hosts and from trusted administrators.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS Evolved | >=unspecified<20.1R2-EVO | 20.1R2-EVO | advisory ↗ |