CVE-2024-30405 Denial of service in Junos OS

High 8.7 Published 12 Apr 2024 Updated 12 Aug 2024

Attackers can cause a sustained denial of service on Juniper SRX 5000 devices by sending crafted packets when Application Layer Gateways are enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-30405?

CVE-2024-30405 is a high-severity denial of service vulnerability in Juniper Junos, published on 12 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).

Continued receipt and processing of these specific packets will sustain the Denial of Service condition.

This issue affects: Juniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled. * All versions earlier than 21.2R3-S7; * 21.4 versions earlier than 21.4R3-S6; * 22.1 versions earlier than 22.1R3-S5; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R2.

Weakness: CWE-131

Which versions are affected by CVE-2024-30405?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2024-30405?

No fix has been published for CVE-2024-30405 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-30405 being exploited?

There is no known exploitation of CVE-2024-30405 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-6gj8-fxh3-h3j9.