A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).
If an MX Series device receives PTP packets on an MPC3E that doesn't support PTP this causes a memory leak which will result in unpredictable behavior and ultimately in an MPC crash and restart.
To monitor for this issue, please use the following FPC vty level commands:
show heap
shows an increase in "LAN buffer" utilization and
show clksync ptp nbr-upd-info
shows non-zero "Pending PFEs" counter.
This issue affects Juniper Networks Junos OS on MX Series with MPC3E:
* All versions earlier than 20.4R3-S3;
* 21.1 versions earlier than 21.1R3-S4;
* 21.2 versions earlier than 21.2R3;
* 21.3 versions earlier than 21.3R2-S1, 21.3R3;
* 21.4 versions earlier than 21.4R2;
* 22.1 versions earlier than 22.1R2.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: juniper
Published: 2024-01-12T00:53:23.497Z
Updated: 2024-08-01T22:27:35.799Z
Reserved: 2023-12-27T19:38:25.706Z
Link: CVE-2024-21599
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2024-01-12T01:15:47.660
Modified: 2024-01-19T21:00:23.387
Link: CVE-2024-21599
Redhat
No data.