Main Vulnerability Database Vulnerabilities #VU62281

Buffer overflow in ThinkPad X1 Fold Gen 1 20RK and ThinkPad X1 Fold Gen 1 20RL - CVE-2022-1108

Published: April 13, 2022

Vulnerability identifier: #VU62281

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-1108

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

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.

Affected software

ThinkPad X1 Fold Gen 1 20RK
ThinkPad X1 Fold Gen 1 20RL

How to mitigate CVE-2022-1108

Install updates from vendor's website.

ThinkPad X1 Fold Gen 1 20RK - update to N2PET50W
ThinkPad X1 Fold Gen 1 20RL - update to N2PET50W

External References

https://support.lenovo.com/lu/uk/product_security/LEN-84943

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