Main Vulnerability Database SB2024011076

SB2024011076 - Null pointer dereference in Junos OS Evolved

Published: January 10, 2024

Security Bulletin ID SB2024011076

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Null pointer dereference (CVE-ID: CVE-2024-21602)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/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 null pointer dereference error. A remote non-authenticated attacker can cause a Denial of Service (DoS).

If a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption.

Continued receipt of such packets will lead to a sustained DoS.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-Evolved-ACX7024-ACX7100-32C-and-ACX7100-48L-Traffic-stops-when-a-specific-IPv4-UDP-packet-is-received-by-the-RE-CVE-2024-21602