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PUBLISHED

CVE-2024-30388

Junos OS: QFX5000 Series and EX Series: Specific malformed LACP packets will cause flaps

Reserved:2024-03-26
Published:2024-04-12
Updated:2024-05-16

Description

An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If a specific malformed LACP packet is received by a QFX5000 Series, or an EX4400, EX4100 or EX4650 Series device, an LACP flap will occur resulting in traffic loss. This issue affects Junos OS on QFX5000 Series, and on EX4400, EX4100 or EX4650 Series: * 20.4 versions from 20.4R3-S4 before 20.4R3-S8, * 21.2 versions from 21.2R3-S2 before 21.2R3-S6, * 21.4 versions from 21.4R2 before 21.4R3-S4, * 22.1 versions from 22.1R2 before 22.1R3-S3, * 22.2 versions before 22.2R3-S1, * 22.3 versions before 22.3R2-S2, 22.3R3, * 22.4 versions before 22.4R2-S1, 22.4R3.



MEDIUM: 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
HIGH: 7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Problem types

Denial of Service (DoS)

CWE-653: Improper Isolation or Compartmentalization

Product status

Default status
unaffected

20.4R3-S4 before 20.4R3-S8
affected

21.2R3-S2 before 21.2R3-S6
affected

21.4R2 before 21.4R3-S4
affected

22.1R2 before 22.1R3-S3
affected

22.2 before 22.2R3-S1
affected

22.3 before 22.3R2-S2, 22.3R3
affected

22.4 before 22.4R2-S1, 22.4R3
affected

Timeline

2024-04-10:Initial Publication

References

http://supportportal.juniper.net/JSA79089 vendor-advisory

https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L technical-description

cve.org CVE-2024-30388

nvd.nist.gov CVE-2024-30388

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