CVE-2024-39529

HIGH
Published Jul 11, 2024 Modified Nov 21, 2024 CWE-134

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.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-134 CWE-134

Affected Products

Vendor Product
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper junos
juniper srx100
juniper srx110
juniper srx1400
juniper srx1500
juniper srx1600
juniper srx210
juniper srx220
juniper srx2300
juniper srx240
juniper srx240h2
juniper srx240m
juniper srx300
juniper srx320
juniper srx340
juniper srx3400
juniper srx345
juniper srx3600
juniper srx380
juniper srx4000
juniper srx4100
juniper srx4200
juniper srx4300
juniper srx4600
juniper srx4700
juniper srx5000
juniper srx5400
juniper srx550
juniper srx550_hm
juniper srx550m
juniper srx5600
juniper srx5800
juniper srx650

References

Frequently Asked Questions

What is CVE-2024-39529? +
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. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2024-39529? +
CVE-2024-39529 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-39529? +
CVE-2024-39529 affects products from juniper, specifically: junos, srx100, srx110, srx1400, srx1500, srx1600, srx210, srx220, srx2300, srx240, srx240h2, srx240m, srx300, srx320, srx340, srx3400, srx345, srx3600, srx380, srx4000, srx4100, srx4200, srx4300, srx4600, srx4700, srx5000, srx5400, srx550, srx550_hm, srx550m, srx5600, srx5800, srx650. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-39529? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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