CVE-2019-18811 Denial of service in n/a

Medium 5.5 Published Updated

Attackers can cause a denial of service via memory consumption in the Linux kernel's Sound Open Firmware IPC handler.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2019-18811?

CVE-2019-18811 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 7 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A memory leak in the sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering sof_get_ctrl_copy_params() failures, aka CID-45c1380358b1.

Weakness: CWE-401

Which versions are affected by CVE-2019-18811?

It affects 3 products.

Products include Fedoraproject Fedora, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2019-18811?

Apply the vendor's patch.

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-2019-18811 being exploited?

There is no known exploitation of CVE-2019-18811 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-18811, GHSA-grcg-hjg8-mrhw, UBUNTU-CVE-2019-18811.

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