CVE-2024-21599
published 2024-01-12CVE-2024-21599: 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…
medium6.5CVSS 3.1
AVAACLPRNUINSUCNINAH
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.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | mx_series | — | — |
| juniper_networks | junos_os | < 20.4R3-S3 | 20.4R3-S3 |
| juniper_networks | junos_os | >= 21.1 < 21.1R3-S4 | 21.1R3-S4 |
| juniper_networks | junos_os | >= 21.2 < 21.2R3 | 21.2R3 |
| juniper_networks | junos_os | >= 21.3 < 21.3R2-S1, 21.3R3 | 21.3R2-S1, 21.3R3 |
| juniper_networks | junos_os | >= 21.4 < 21.4R2 | 21.4R2 |
| juniper_networks | junos_os | >= 22.1 < 22.1R2 | 22.1R2 |