QID 44020

Juniper Junos is the network operating system used in Juniper Networks hardware systems.

A Use After Free vulnerability in the routing protocol daemon of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause Denial of Service (DoS).

This issue affects:
Juniper Networks Junos OS 20.2 version 20.2R3-S5 and later versions prior to 20.2R3-S6;
20.3 version 20.3R3-S2 and later versions prior to 20.3R3-S5;
20.4 version 20.4R3-S1 and later versions prior to 20.4R3-S4
21.1 version 21.1R3 and later versions prior to 21.1R3-S3;
21.2 version 21.2R1-S2, 21.2R2-S1 and later versions prior to 21.2R3-S2;
21.3 version 21.3R2 and later versions prior to 21.3R3;
21.4 versions prior to 21.4R2-S1, 21.4R3;
22.1 versions prior to 22.1R2.
QID detection logic: (Authenticated)
It checks for vulnerable Junos OS version.

Successful exploitation of this vulnerability may allows an unauthenticated attacker with physical access to the device to cause a Denial of Service (DoS).