CVE-2021-0298 Junos OS Evolved: PTX10003, PTX10008: picd core while executing the "show chassis pic" command under certain conditions
An attacker can cause a denial of service by triggering a race condition in the picd daemon via the show chassis pic command on Juniper PTX routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-0298?
CVE-2021-0298 is a medium-severity vulnerability in Juniper Junos Os Evolved, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-362
Which versions are affected by CVE-2021-0298?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2021-0298?
No fix has been published for CVE-2021-0298 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-0298 being exploited?
There is no known exploitation of CVE-2021-0298 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos Os Evolved
- CVE-2026-21902 Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
- CVE-2023-28983 Junos OS Evolved: Shell Injection vulnerability in the gNOI server
- CVE-2025-21599 Denial of service in Junos OS Evolved
- CVE-2024-47502 Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS
- CVE-2024-39531 Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols
Sources
Also known as GHSA-wpp7-x3r8-v7f8.