CVE-2016-9911 Denial of service in n/a
A guest user can cause host memory leakage in QEMU's USB EHCI emulation, leading to a denial of service on the host system.
- 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-2016-9911?
CVE-2016-9911 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 23 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Quick Emulator (Qemu) built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
Weakness: CWE-772
Which versions are affected by CVE-2016-9911?
It affects 4 products.
Products include Debian Debian Linux, Qemu Qemu, Redhat Openstack, Redhat Virtualization.
How do I fix CVE-2016-9911?
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-2016-9911 being exploited?
There is no known exploitation of CVE-2016-9911 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2016-9911, GHSA-hq78-7w28-92xm, UBUNTU-CVE-2016-9911.