CVE-2016-8668 Denial of service in n/a
Local guest OS administrators can crash the QEMU process via an out-of-bounds read in the rocker network device emulation due to missing DMA buffer size limits.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-8668?
CVE-2016-8668 is a medium-severity denial of service vulnerability in Opensuse Leap, published on 4 Nov 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.
Weakness: CWE-120
Which versions are affected by CVE-2016-8668?
It affects 2 products.
Products include Opensuse Leap, Qemu Qemu.
How do I fix CVE-2016-8668?
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-2016-8668 being exploited?
There is no known exploitation of CVE-2016-8668 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Leap
Sources
Also known as ALPINE-CVE-2016-8668, DEBIAN-CVE-2016-8668, GHSA-h48h-v2qr-c72q, UBUNTU-CVE-2016-8668.