SB2022041313 - Multiple vulnerabilities in Lenovo ThinkPad BIOS

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Main Vulnerability Database SB2022041313

SB2022041313 - Multiple vulnerabilities in Lenovo ThinkPad BIOS

Published: April 13, 2022

Security Bulletin ID SB2022041313
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2022-1108)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in LenovoFlashDeviceInterface within the SMI handler. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with elevated privileges.


2) Security restrictions bypass (CVE-ID: CVE-2022-1107)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of Boot Services in the SmmOEMInt15 SMI handler. A local user can bypass implemented security restrictions and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References