CVE-2016-2197 Null dereference in n/a

Medium 5.5 Published 29 Dec 2016 Updated 5 Aug 2024

A privileged guest user can crash the QEMU process via a null pointer dereference in IDE AHCI emulation, causing denial of service.

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-2016-2197?

CVE-2016-2197 is a medium-severity vulnerability in Qemu Qemu, published on 29 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.

Weakness: CWE-476

Which versions are affected by CVE-2016-2197?

It affects 1 product.

Products include Qemu Qemu.

How do I fix CVE-2016-2197?

Apply the vendor's patch.

Is CVE-2016-2197 being exploited?

There is no known exploitation of CVE-2016-2197 in the wild and no public exploit code.

All Qemu Qemu vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-2197, GHSA-ph2m-74p3-x4w9.