CVE-2023-44181: Junos OS: QFX5k: l2 loop in the overlay impacts the stability in a EVPN/VXLAN environment
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 QFX5k.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2023-44181?
CVE-2023-44181 has been classified as a high severity vulnerability due to its potential to cause Denial of Service (DDoS) conditions.
How do I fix CVE-2023-44181?
To address CVE-2023-44181, it is recommended to update your Junos OS to a version that has patched this vulnerability.
Which Juniper devices are affected by CVE-2023-44181?
CVE-2023-44181 affects Juniper Networks Junos OS QFX5k devices running specific versions of Junos software prior to the fix.
What kind of attacks can CVE-2023-44181 lead to?
CVE-2023-44181 can lead to DDoS attacks resulting from improperly implemented storm control limits.
Is there a workaround for CVE-2023-44181?
There are no documented workarounds for CVE-2023-44181, and updating to a secure version is the recommended action.