CVE-2023-44192
published 2023-10-13CVE-2023-44192: An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause memory leak, leading to Denial of Service (DoS).
On all Junos OS QFX5000 Series platforms, when pseudo-VTEP (Virtual Tunnel End Point) is configured under EVPN-VXLAN scenario, and specific DHCP packets are transmitted, DMA memory leak is observed. Continuous receipt of these specific DHCP packets will cause memory leak to reach 99% and then cause the protocols to stop working and traffic is impacted, leading to Denial of Service (DoS) condition. A manual reboot of the system recovers from the memory leak.
To confirm the memory leak, monitor for "sheaf:possible leak" and "vtep not found" messages in the logs.
This issue affects:
Juniper Networks Junos OS QFX5000 Series:
* All versions prior to 20.4R3-S6;
* 21.1 versions prior to 21.1R3-S5;
* 21.2 versions prior to 21.2R3-S5;
* 21.3 versions prior to 21.3R3-S4;
* 21.4 versions prior to 21.4R3-S3;
* 22.1 versions prior to 22.1R3-S2;
* 22.2 versions prior to 22.2R2-S2, 22.2R3;
* 22.3 versions prior to 22.3R2-S1, 22.3R3;
* 22.4 versions prior to 22.4R1-S2, 22.4R2.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | < 20.4 | 20.4 |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | qfx_series | — | — |
| juniper_networks | junos_os | < 20.4R3-S6 | 20.4R3-S6 |
| juniper_networks | junos_os | >= 21.1 < 21.1R3-S5 | 21.1R3-S5 |
| juniper_networks | junos_os | >= 21.2 < 21.2R3-S5 | 21.2R3-S5 |
| juniper_networks | junos_os | >= 21.3 < 21.3R3-S4 | 21.3R3-S4 |
| juniper_networks | junos_os | >= 21.4 < 21.4R3-S3 | 21.4R3-S3 |
| juniper_networks | junos_os | >= 22.1 < 22.1R3-S2 | 22.1R3-S2 |
| juniper_networks | junos_os | >= 22.2 < 22.2R2-S2, 22.2R3 | 22.2R2-S2, 22.2R3 |
| juniper_networks | junos_os | >= 22.3 < 22.3R2-S1, 22.3R3 | 22.3R2-S1, 22.3R3 |
| juniper_networks | junos_os | >= 22.4 < 22.4R1-S2, 22.4R2 | 22.4R1-S2, 22.4R2 |