CVE-2020-10566 Memory corruption in n/a
A buffer overflow in grub2-bhyve allows guest VMs to execute arbitrary code or escalate privileges on the host via a malicious configuration file.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-10566?
CVE-2020-10566 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 14 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.
Weakness: CWE-120
Which versions are affected by CVE-2020-10566?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2020-10566?
No fix has been published for CVE-2020-10566 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-10566 being exploited?
There is no known exploitation of CVE-2020-10566 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-rj84-59vh-9hpj.