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AUSCERT External Security Bulletin Redistribution
ESB-2024.2226
2024-04 Security Bulletin: Junos OS: EX4300 Series: If a specific CLI
command is issued PFE crashes will occur (CVE-2024-30384)
11 April 2024
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AusCERT Security Bulletin Summary
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Product: Junos OS
Publisher: Juniper Networks
Operating System: Juniper
Resolution: Patch/Upgrade
CVE Names: CVE-2024-30384
Original Bulletin:
https://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-EX4300-Series-If-a-specific-CLI-command-is-issued-PFE-crashes-will-occur-CVE-2024-30384
Comment: CVSS (Max): 5.5 CVE-2024-30384 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Juniper Networks
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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Article ID: JSA79186
Product Affected: This issue affects all versions of Junos OS. Affected
platforms: EX4300 Series.
Severity Level: Medium
CVSS Score: CVSS 3.1
Problem:
An Improper Check for Unusual or Exceptional Conditions vulnerability in the
Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on EX4300 Series
allows a locally authenticated attacker with low privileges to cause a
Denial-of-Service (Dos).
If a specific CLI command is issued, a PFE crash will occur. This will cause
traffic forwarding to be interrupted until the system self-recovers.
This issue affects Junos OS:
o All versions before 20.4R3-S10,
o 21.2 versions before 21.2R3-S7,
o 21.4 versions before 21.4R3-S6.
Solution:
The following software releases have been updated to resolve this specific
issue: 20.4R3-S10, 21.2R3-S7, 21.4R3-S6, and all subsequent releases of these
branches.
This issue is being tracked as 1774634 which is visible on the Customer Support
website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of
Engineering (EOE) or End of Life (EOL).
Workaround:
There are no known workarounds for this issue.
Modification History:
2024-04-10 - Initial Publication
Related Information:
o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
Publication Process
o KB16765: In which releases are vulnerabilities fixed?
o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories
o Report a Security Vulnerability - How to Contact the Juniper Networks
Security Incident Response Team
o https://www.cve.org/CVERecord?id=CVE-2024-30384
Last Updated: 2024-04-10
Created: 2024-04-10
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