SB2024041113 - Improper check for unusual or exceptional conditions in Juniper Junos OS

Security Bulletin ID SB2024041113

CSH Severity

Low

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Local access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2024-30384)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

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

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper check for unusual or exceptional conditions error in the Packet Forwarding Engine (PFE). A local authenticated user can 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.

Remediation

Install update from vendor's website.

References

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