CVE-2024-39529CWE-134

Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash

High · published July 11, 2024

CVSS v4.0
8.7
EPSS
0%
Percentile
40.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
EPSS
0.00476 · 40.1th percentile
Weakness
CWE-134 · Use of Externally-Controlled Format String
Published
2024-07-11T16:03Z
EPSS history
Timeline
  • 11 JUL 16:03Z
    Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash
    cvelistv5