CVE-2020-27616 Denial of service in n/a
A guest can crash the QEMU process via an out-of-bounds calculation in the ATI 2D blit handler, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-27616?
CVE-2020-27616 is a medium-severity denial of service vulnerability in Qemu Qemu, published on 6 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process.
Weakness: CWE-682
Which versions are affected by CVE-2020-27616?
It affects 1 product.
Products include Qemu Qemu.
How do I fix CVE-2020-27616?
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-2020-27616 being exploited?
There is no known exploitation of CVE-2020-27616 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2020-27616, GHSA-7r3q-28jv-xmcr, UBUNTU-CVE-2020-27616.