An Improperly Implemented Security Check for Standard vulnerability in storm control of Juniper Networks Junos OS QFX5k devices allows packets to be punted to ARP queue causing a l2 loop resulting in a DDOS violations and DDOS syslog. This issue is triggered when Storm control is enabled and ICMPv6 packets are present on device. This issue affects Juniper Networks: Junos OS * All versions prior to 20.2R3-S6 on QFX5k; * 20.3 versions prior to 20.3R3-S5 on QFX5k; * 20.4 versions prior to 20.4R3-S5 on QFX5k; * 21.1 versions prior to 21.1R3-S4 on QFX5k; * 21.2 versions prior to 21.2R3-S3 on QFX5k; * 21.3 versions prior to 21.3R3-S2 on QFX5k; * 21.4 versions prior to 21.4R3 on QFX5k; * 22.1 versions prior to 22.1R3 on QFX5k; * 22.2 versions prior to 22.2R2 on Q
The following software releases have been updated to resolve this specific issue: Junos OS 20.2R3-S6, 20.3R3-S5, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S2, 21.4R3, 22.1R3, 22.2R2, 22.3R1, and all subsequent releases.
Disable storm control configuration.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | <20.2R3-S6 | 20.2R3-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=20.3<20.3R3-S5 | 20.3R3-S5 | advisory ↗ |
| Juniper Networks Junos OS | >=20.4<20.4R3-S5 | 20.4R3-S5 | advisory ↗ |
| Juniper Networks Junos OS | >=21.1<21.1R3-S4 | 21.1R3-S4 | advisory ↗ |
| Juniper Networks Junos OS | >=21.2<21.2R3-S3 | 21.2R3-S3 | advisory ↗ |
| Juniper Networks Junos OS | >=21.3<21.3R3-S2 | 21.3R3-S2 | advisory ↗ |
| Juniper Networks Junos OS | >=21.4<21.4R3 | 21.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.1<22.1R3 | 22.1R3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.2<22.2R2 | 22.2R2 | advisory ↗ |