CVE-2024-47490: Junos OS Evolved: ACX 7000 Series: Receipt of specific transit MPLS packets causes resources to be exhausted
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, network based attacker to cause increased consumption of resources, ultimately resulting in a Denial of Service (DoS).
When specific transit MPLS packets are received by the PFE, these packets are internally forwarded to the Routing Engine (RE), rather than being handled appropriately. Continuous receipt of these MPLS packets causes resources to be exhausted. MPLS config is not required to be affected by this issue.
This issue affects Junos OS Evolved ACX 7000 Series:
All versions before 21.4R3-S9-EVO, 22.2-EVO before 22.2R3-S4-EVO, 22.3-EVO before 22.3R3-S3-EVO, 22.4-EVO before 22.4R3-S2-EVO, 23.2-EVO before 23.2R2-EVO, 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2024-47490?
CVE-2024-47490 is rated as a high-severity vulnerability due to its potential for resource exhaustion by unauthenticated attackers.
How do I fix CVE-2024-47490?
To mitigate CVE-2024-47490, it is essential to upgrade your Junos OS Evolved software to a version that is not affected by this vulnerability.
What are the affected versions for CVE-2024-47490?
CVE-2024-47490 affects Juniper Networks Junos OS Evolved versions prior to 23.4R2-EVO, including 21.4R3-S9-EVO through 23.4R1-S1-EVO.
What type of attack does CVE-2024-47490 facilitate?
CVE-2024-47490 allows unauthenticated, network-based attackers to increase resource consumption, potentially leading to denial of service.
Who is affected by CVE-2024-47490?
Organizations using the specified versions of Junos OS Evolved on ACX 7000 Series devices are affected by CVE-2024-47490.