CVE-2023-44192 Information

Description

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 tep 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.

Reference

https://supportportal.juniper.net/JSA73156