CVE-2017-8071 Denial of service in n/a

Medium 5.5 Published Updated

Local users can cause a kernel deadlock and denial of service in the CP2112 HID driver due to improper spinlock usage in USB callbacks.

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-2017-8071?

CVE-2017-8071 is a medium-severity denial of service vulnerability in Linux kernel, published on 23 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 uses a spinlock without considering that sleeping is possible in a USB HID request callback, which allows local users to cause a denial of service (deadlock) via unspecified vectors.

Weakness: CWE-404

Which versions are affected by CVE-2017-8071?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-8071?

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-2017-8071 being exploited?

There is no known exploitation of CVE-2017-8071 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-8071, GHSA-96rr-jvj7-x24m.

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