Security News > 2022 > April > ESET uncovers vulnerabilities in Lenovo laptops
Got a Lenovo laptop? You might need to do a swift bit of patching judging by the latest set of vulnerabilities uncovered by security researchers at ESET. Three vulnerabilities were reported today: CVE-2021-3970, CVE-2021-3971, and CVE-2021-3972.
"UEFI threats can be extremely stealthy and dangerous," said ESET researcher Martin Smolár, who discovered the vulnerabilities.
Lenovo's advisory describes CVE-2021-3970 as a "Potential vulnerability in Lenovo Variable SMI Handler due to insufficient validation in some Lenovo Notebook models [that] may allow an attacker with local access and elevated privileges to execute arbitrary code."
ESET reported the latest vulnerabilities to Lenovo in October last year, and says the list of affected devices numbers more than a hundred models with millions of users worldwide.
According to ESET, Lenovo confirmed the vulnerabilities on November 17 2021, and the CVEs were assigned.
The Register contacted Lenovo for comment beyond its advisory, but the company has yet to respond.
News URL
https://go.theregister.com/feed/www.theregister.com/2022/04/19/eset_lenovo/
Related Vulnerability
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2022-04-22 | CVE-2021-3972 | Unspecified vulnerability in Lenovo products A potential vulnerability by a driver used during manufacturing process on some consumer Lenovo Notebook devices' BIOS that was mistakenly not deactivated may allow an attacker with elevated privileges to modify secure boot setting by modifying an NVRAM variable. | 4.6 |
| 2022-04-22 | CVE-2021-3971 | Unspecified vulnerability in Lenovo products A potential vulnerability by a driver used during older manufacturing processes on some consumer Lenovo Notebook devices that was mistakenly included in the BIOS image could allow an attacker with elevated privileges to modify firmware protection region by modifying an NVRAM variable. | 4.6 |
| 2022-04-22 | CVE-2021-3970 | Improper Input Validation vulnerability in Lenovo products A potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attacker with local access and elevated privileges to execute arbitrary code. | 7.2 |