CVE-2020-8323 Code injection in BIOS
A vulnerability in the Lenovo BIOS Legacy SD driver allows arbitrary code execution via a flawed SMI callback function.
- 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-2020-8323?
CVE-2020-8323 is a medium-severity code injection vulnerability in Lenovo BIOS, published on 9 Jun 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 Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.
Which versions are affected by CVE-2020-8323?
It affects 172 products.
Products include Lenovo 14iwl Firmware, Lenovo 330-14ast Firmware, Lenovo 330-15ast Firmware, Lenovo 330-17ast Firmware, Lenovo 340c-15api Firmware, Lenovo 340c-15ast Firmware and 166 more.
How do I fix CVE-2020-8323?
No fix has been published for CVE-2020-8323 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-8323 being exploited?
There is no known exploitation of CVE-2020-8323 in the wild and no public exploit code.
Other vulnerabilities in Lenovo BIOS
Sources
Also known as GHSA-55j2-pfhw-fwf3.