Main Vulnerability Database SB2024041205

SB2024041205 - Denial of service in Junos OS PFE

Published: April 12, 2024

Security Bulletin ID SB2024041205

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Adjecent network

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Synchronization (CVE-ID: CVE-2024-30387)

CWE-ID: CWE-820 - Missing Synchronization

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a missing synchronization error in the Packet Forwarding Engine (PFE). A remote authenticated attacker on the local network can cause a Denial-of-Service (DoS).

If an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-ACX5448-ACX710-Due-to-the-interface-flaps-the-PFE-process-can-crash-CVE-2024-30387