CVE-2013-6367 Denial of service in n/a
A guest OS user can crash the host system via a divide-by-zero error in the KVM LAPIC timer implementation.
- 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-2013-6367?
CVE-2013-6367 is a medium-severity denial of service vulnerability in Linux kernel, published on 14 Dec 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via crafted modifications of the TMICT value.
Weakness: CWE-189
Which versions are affected by CVE-2013-6367?
It affects 1 product.
Linux distribution packages (1)
rhev-hypervisor6 Red Hat:enterprise_linux:6::hypervisor | All versions | 0:6.5-20131204.0.3.2.el6_5 |
Products include Linux kernel.
How do I fix CVE-2013-6367?
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-2013-6367 being exploited?
There is no known exploitation of CVE-2013-6367 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2013-6367, GHSA-57mh-hm58-7p4m, RHSA-2013:1802.