Juniper Networks Junos OS affected by Improper Check for Unusual or Exceptional Conditions vulnerability

CVE-2024-30402

What is CVE-2024-30402?

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

When telemetry requests are sent to the device, and the Dynamic Rendering Daemon (drend) is suspended, the l2ald crashes and restarts due to factors outside the attackers control. Repeated occurrences of these events causes a sustained DoS condition.

This issue affects: Junos OS:

• All versions earlier than 20.4R3-S10;
• 21.2 versions earlier than 21.2R3-S7;
• 21.4 versions earlier than 21.4R3-S5;
• 22.1 versions earlier than 22.1R3-S4;
• 22.2 versions earlier than 22.2R3-S3;
• 22.3 versions earlier than 22.3R3-S1;
• 22.4 versions earlier than 22.4R3;
• 23.2 versions earlier than 23.2R1-S2, 23.2R2.

Junos OS Evolved:

• All versions earlier than 21.4R3-S5-EVO;
• 22.1-EVO versions earlier than 22.1R3-S4-EVO;
• 22.2-EVO versions earlier than 22.2R3-S3-EVO;
• 22.3-EVO versions earlier than 22.3R3-S1-EVO;
• 22.4-EVO versions earlier than 22.4R3-EVO;
• 23.2-EVO versions earlier than 23.2R2-EVO.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch →

References