CVE-2024-30387 Information

Description

A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated adjacent attacker to 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.

This issue affects Junos OS:

All versions before 20.4R3-S9

21.2 versions before 21.2R3-S5 

21.3 versions before 21.3R3-S5 

21.4 versions before 21.4R3-S4

22.1 versions before 22.1R3-S2

22.2 versions before 22.2R3-S2

22.3 versions before 22.3R2-S2 22.3R3

22.4 versions before 22.4R2.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://supportportal.juniper.net/JSA79187 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:N

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5