CVE-2020-8354 Race condition in BIOS
A race condition in the Lenovo Notebook BIOS SMI callback allows attackers to execute arbitrary code, requiring firmware updates.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8354?
CVE-2020-8354 is a medium-severity vulnerability in Lenovo BIOS, published on 11 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential vulnerability in the SMI callback function used in the VariableServiceSmm driver in some Lenovo Notebook models may allow arbitrary code execution.
Weakness: CWE-367
Which versions are affected by CVE-2020-8354?
It affects 1 product.
Products include Lenovo Notebook Firmware.
How do I fix CVE-2020-8354?
No fix has been published for CVE-2020-8354 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8354 being exploited?
There is no known exploitation of CVE-2020-8354 in the wild and no public exploit code.
Sources
Also known as GHSA-g763-g64f-m23g.