Lenovo Working on Patches for BIOS Vulnerabilities Affecting Many Laptops

guest · Jul 15, 2021

Lenovo Working on Patches for BIOS Vulnerabilities Affecting Many Laptops
July 15, 2021
https://www.securityweek.com/lenovo-working-patches-bios-vulnerabilities-affecting-many-laptops

Tracked as CVE-2021-3452 and affecting tens of ThinkPad models, the first of the bugs impacts the system shutdown SMI callback function and could be abused by a local attacker that already has elevated privileges on the device to execute arbitrary code.

In its advisory, Lenovo says it is working on releasing BIOS updates for over 32 ThinkPad models, and that it expects to start rolling out the patches on July 28.
Click to expand...

Five other ThinkPad models that are not affected by this vulnerability are impacted by CVE-2021-3453, a security hole that exists because BIOS modules are not protected by Intel Boot Guard, meaning that an attacker with physical access to the affected devices could write to the SPI flash storage.
The security flaw also affects two ideacentre desktop models, which are expected to receive patches on September 30.
Click to expand...

Tracked as CVE-2021-3614, the third of the vulnerabilities affects Lenovo notebook models only and could allow “an attacker with physical access to elevate privileges under certain conditions during a BIOS update performed by Lenovo Vantage,” the computer maker explains.
Click to expand...

Log in or Sign up

Lenovo Working on Patches for BIOS Vulnerabilities Affecting Many Laptops

guest Guest

Log in or Sign up

Lenovo Working on Patches for BIOS Vulnerabilities Affecting Many Laptops

guest Guest

Useful Searches