CVE-2024-30395

/// Technical description

An Improper Validation of Specified Type of Input vulnerability in Routing Protocol Daemon (RPD) of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).

If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.

This issue affects:

Junos OS:

* all versions before 21.2R3-S7, 

* from 21.3 before 21.3R3-S5, 

* from 21.4 before 21.4R3-S5, 

* from 22.1 before 22.1R3-S5, 

* from 22.2 before 22.2R3-S3, 

* from 22.3 before 22.3R3-S2, 

* from 22.4 before 22.4R3, 

* from 23.2 before 23.2R1-S2, 23.2R2.

Junos OS Evolved:

* all versions before 21.2R3-S7-EVO, 

* from 21.3-EVO before 21.3R3-S5-EVO, 

* from 21.4-EVO before 21.4R3-S5-EVO, 

* from 22.2-EVO before 22.2R3-S3-EVO, 

* from 22.3-EVO before 22.3R3-S2-EVO, 

* from 22.4-EVO before 22.4R3-EVO, 

* from 23.2-

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References