In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit (AFT) manager process (Evo-aftmand), responsible for handling Route, Class-of-Service (CoS), Firewall operations within the packet forwarding engine (PFE) to crash and restart, leading to a Denial of Service (DoS) condition. By continuously sending this specific stream of genuine Layer 2 frames, an attacker can repeatedly crash the PFE, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R1-EVO. This issue does not affect Junos OS versions.
References
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2021-04-22T19:37:05.415854Z

Updated: 2024-09-16T17:49:30.356Z

Reserved: 2020-10-27T00:00:00

Link: CVE-2021-0239

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-04-22T20:15:08.943

Modified: 2024-11-21T05:42:16.777

Link: CVE-2021-0239

cve-icon Redhat

No data.