CVE-2024-39535: Junos OS Evolved: ACX 7000 Series: When specific traffic is received in a VPLS scenario evo-pfemand crashes
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When a device has a Layer 3 or an IRB interface configured in a VPLS instance and specific traffic is received, the evo-pfemand processes crashes which causes a service outage for the respective FPC until the system is recovered manually.
This issue only affects Junos OS Evolved 22.4R2-S1 and 22.4R2-S2 releases and is fixed in 22.4R3. No other releases are affected.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2024-39535?
CVE-2024-39535 has a severity rating that indicates it can lead to a Denial-of-Service (DoS) condition.
How do I fix CVE-2024-39535?
To address CVE-2024-39535, you should update your Junos OS Evolved to a version later than 22.4R2-S2.
Who is affected by CVE-2024-39535?
CVE-2024-39535 affects devices running Junos OS Evolved on Juniper Networks ACX 7000 Series between versions 22.4R2-S1 and 22.4R2-S2.
What type of vulnerability is CVE-2024-39535?
CVE-2024-39535 is classified as an Improper Check for Unusual or Exceptional Conditions vulnerability.
Can CVE-2024-39535 be exploited remotely?
CVE-2024-39535 can be exploited by an unauthenticated, adjacent attacker to cause a Denial-of-Service.