CVE-2017-15306 Null dereference in n/a
Local users can crash the system via a NULL pointer dereference in the Linux kernel's KVM implementation on PowerPC architectures.
- 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-2017-15306?
CVE-2017-15306 is a medium-severity vulnerability in Linux kernel, published on 6 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.
Weakness: CWE-476
Which versions are affected by CVE-2017-15306?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-15306?
Apply the vendor's patch.
Is CVE-2017-15306 being exploited?
There is no known exploitation of CVE-2017-15306 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-15306, GHSA-5jfh-37mq-mfw7, UBUNTU-CVE-2017-15306.