CVE-2017-6348 Denial of service in n/a

Medium 5.5 Published Updated

Local users can cause a system deadlock and denial of service by exploiting improper lock management in the Linux kernel's IrDA subsystem.

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-2017-6348?

CVE-2017-6348 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The hashbin_delete function in net/irda/irqueue.c in the Linux kernel before 4.9.13 improperly manages lock dropping, which allows local users to cause a denial of service (deadlock) via crafted operations on IrDA devices.

Which versions are affected by CVE-2017-6348?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-6348?

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-2017-6348 being exploited?

There is no known exploitation of CVE-2017-6348 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-6348, GHSA-m8mp-j74x-qfh9, UBUNTU-CVE-2017-6348.

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