CVE-2024-39529 Information

Description

A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to cause a Denial-of-Service (DoS).

If DNS Domain Generation Algorithm (DGA) detection or tunnel detection and DNS-filtering traceoptions are configured and specific valid transit DNS traffic is received this causes a PFE crash and restart leading to a Denial of Service.

This issue affects Junos OS: All versions before 21.4R3-S6 22.2 versions before 22.2R3-S3 22.3 versions before 22.3R3-S3 22.4 versions before 22.4R3 23.2 versions before 23.2R2.

CVSS Vector

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

Reference

https://supportportal.juniper.net/JSA82988

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

7.5