CVE-2014-3471 Use after free in n/a
Local guest users can crash the QEMU instance via hotplug operations on Virtio block devices due to a use-after-free error.
- 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-2014-3471?
CVE-2014-3471 is a medium-severity use after free vulnerability in Qemu Qemu, published on 12 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use-after-free vulnerability in hw/pci/pcie.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (QEMU instance crash) via hotplug and hotunplug operations of Virtio block devices.
Weakness: CWE-416
Which versions are affected by CVE-2014-3471?
It affects 1 product.
Products include Qemu Qemu.
How do I fix CVE-2014-3471?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2014-3471 being exploited?
There is no known exploitation of CVE-2014-3471 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2014-3471, GHSA-hfch-73vm-jx9g, UBUNTU-CVE-2014-3471.