SB2024071607 - Denial of service in Junos OS Evolved PFE
Published: July 16, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2024-39535)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper check for unusual or exceptional conditions error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can 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.
Remediation
Install update from vendor's website.