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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2021-0287

Change History

CVE Modified by Juniper Networks, Inc. 7/15/2021 5:15:08 PM

Action Type Old Value New Value
Changed Description 
In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition.













This issue affects:
Juniper Networks Junos OS:
19.4 versions prior to 19.4R1-S4, 19.4R3-S2;
20.1 versions prior to 20.1R2-S1, 20.1R3;
20.2 versions prior to 20.2R2-S2, 20.2R3;
20.3 versions prior to 20.3R2;

Juniper Networks Junos OS Evolved:
20.3-EVO versions prior to 20.3R2-EVO;
20.4-EVO versions prior to 20.4R2-EVO.

This issue does not affect:
Juniper Networks Junos OS releases prior to 19.4R1.
Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.
 
In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 19.4 versions prior to 19.4R1-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; Juniper Networks Junos OS Evolved: 20.3-EVO versions prior to 20.3R2-EVO; 20.4-EVO versions prior to 20.4R2-EVO. This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.