CVE-2016-5412 Denial of service in n/a
Guest OS users can cause a host OS infinite loop and denial of service via a specific hypercall on PowerPC platforms with KVM enabled.
- 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-2016-5412?
CVE-2016-5412 is a medium-severity denial of service vulnerability in Linux kernel, published on 6 Aug 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction.
Weakness: CWE-399
Which versions are affected by CVE-2016-5412?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2016-5412?
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-2016-5412 being exploited?
There is no known exploitation of CVE-2016-5412 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2016-5412, GHSA-ccw5-jvc3-prf4, UBUNTU-CVE-2016-5412.