CVE-2020-24352 Memory corruption in n/a
A malicious guest can crash the QEMU host process via an out-of-bounds memory access in the ATI VGA device implementation.
- 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-2020-24352?
CVE-2020-24352 is a medium-severity memory corruption vulnerability in Qemu Qemu, published on 16 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Which versions are affected by CVE-2020-24352?
It affects 1 product.
Products include Qemu Qemu.
How do I fix CVE-2020-24352?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-24352 being exploited?
There is no known exploitation of CVE-2020-24352 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2020-24352, GHSA-mm2v-p2cv-qgm2, UBUNTU-CVE-2020-24352.