CVE-2017-8106 Null dereference in n/a

Medium 5.5 Published Updated

Privileged KVM guest users can crash the host OS via a NULL pointer dereference in the INVEPT instruction 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-2017-8106?

CVE-2017-8106 is a medium-severity vulnerability in Linux kernel, published on 24 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The handle_invept function in arch/x86/kvm/vmx.c in the Linux kernel 3.12 through 3.15 allows privileged KVM guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a single-context INVEPT instruction with a NULL EPT pointer.

Weakness: CWE-476

Which versions are affected by CVE-2017-8106?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-8106?

Apply the vendor's patch.

Is CVE-2017-8106 being exploited?

There is no known exploitation of CVE-2017-8106 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-8106, GHSA-xv97-pm64-w44m, UBUNTU-CVE-2017-8106.

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