CVE-2016-7156 Denial of service in n/a
Local guest OS administrators can cause a denial of service in QEMU via an infinite loop triggered by an incorrect cast in the pvscsi driver.
- 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-2016-7156?
CVE-2016-7156 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 10 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The pvscsi_convert_sglist function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging an incorrect cast.
Weakness: CWE-704
Which versions are affected by CVE-2016-7156?
It affects 2 products.
Products include Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2016-7156?
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-2016-7156 being exploited?
There is no known exploitation of CVE-2016-7156 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2016-7156, GHSA-jr2h-265v-vq75, UBUNTU-CVE-2016-7156.