Junos OS: MX Series: Continuous subscriber logins will lead to a memory leak and eventually an FPC crash

A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).

In a subscriber management scenario continuous subscriber logins will trigger a memory leak and eventually lead to an FPC crash and restart.

This issue affects Junos OS on MX Series:

* All version before 21.2R3-S6,

* 21.4 versions before 21.4R3-S6,

* 22.1 versions before 22.1R3-S5,

* 22.2 versions before 22.2R3-S3,

* 22.3 versions before 22.3R3-S2,

* 22.4 versions before 22.4R3,

* 23.2 versions before 23.2R2.