CVE-2021-0298

Junos OS Evolved: PTX10003, PTX10008: picd core while executing the "show chassis pic" command under certain conditions

Published Oct 19, 2021 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

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.


Vendor Workaround

Use access lists or firewall filters to limit access to the router via CLI only from trusted hosts and from trusted administrators.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-2917 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.
References
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Sep 17, 2024, 2:06 AM
Reserved
Oct 27, 2020, 12:00 AM
Status
Modified
Published
Oct 19, 2021, 7:15 PM
Modified
Jun 17, 2026, 3:29 AM