SB2024041115 - Improper isolation or compartmentalization in Juniper Junos OS

Security Bulletin ID SB2024041115

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) Improper isolation or compartmentalization (CVE-ID: CVE-2024-30388)

CWE-ID: CWE-653 - Improper isolation or compartmentalization

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 non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper isolation or compartmentalization error in the Packet Forwarding Engine (pfe). A remote non-authenticated attacker can cause a Denial of Service (DoS).

If a specific malformed LACP packet is received by a QFX5000 Series, or an EX4100 Series , EX4400 Series or EX4650 Series device, an LACP flap will occur resulting in traffic loss.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-QFX5000-Series-and-EX-Series-Specific-malformed-LACP-packets-will-cause-flaps-CVE-2024-30388