CVE-2024-20959 Denial of service in Sun ZFS Storage Appliance Kit (AK) Software

Medium 4.4 Published 16 Jan 2024 Updated 3 Jun 2025

A high-privileged local attacker can cause a complete denial of service on the Oracle ZFS Storage Appliance Kit.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-20959?

CVE-2024-20959 is a medium-severity denial of service vulnerability in Oracle Zfs Storage Appliance Kit, published on 16 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Core). The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle ZFS Storage Appliance Kit executes to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle ZFS Storage Appliance Kit. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-400

Which versions are affected by CVE-2024-20959?

It affects 1 product.

Products include Oracle Zfs Storage Appliance Kit.

How do I fix CVE-2024-20959?

No fix has been published for CVE-2024-20959 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-2024-20959 being exploited?

There is no known exploitation of CVE-2024-20959 in the wild and no public exploit code.

All Oracle Zfs Storage Appliance Kit vulnerabilities

Sources

Also known as GHSA-9hq4-m6mm-522h.