ThinkPad X13s BIOS Vulnerabilities
ThinkPad X13s BIOS Vulnerabilities
ThinkPad X13s BIOS Vulnerabilities
Lenovo Security Advisory: LEN-103709
Potential Impact: Memory corruption, information disclosure
Severity: High
Scope of Impact: Lenovo-specific
CVE Identifier: CVE-2022-40516, CVE-2022-40517, CVE-2022-40518, CVE-2022-40519, CVE-2022-40520, CVE-2022-4432, CVE-2022-4433, CVE-2022-4434, CVE-2022-4435
Summary Description:
The following vulnerabilities were reported in the ThinkPad X13s BIOS.
CVE-2022-40516, CVE-2022-40517, CVE-2022-40520: Qualcomm reported several stack-based buffer overflow vulnerabilities in Qualcomm BIOS that could allow a local attacker with elevated privileges to cause memory corruption.
CVE-2022-40518, CVE-2022-40519: Qualcomm reported several buffer over-read vulnerabilities in Qualcomm BIOS that could allow a local attacker with elevated privileges to cause information disclosure.
CVE-2022-4432, CVE-2022-4433, CVE-2022-4434, CVE-2022-4435: Several buffer over-read vulnerabilities were reported in ThinkPad X13s BIOS that could allow a local attacker with elevated privileges to cause information disclosure.
Mitigation Strategy for Customers (what you should do to protect yourself):
Update ThinkPad X13s BIOS to version 1.47 (N3HET75W) or newer
Acknowledgement:
Lenovo thanks BINARLY efiXplorer team for reporting these issues.
References:
Qualcomm Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin
ThinkPad X13s BIOS Download: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x13s-type-21bx-21by/downloads/ds556845-bios-update-utility-bootable-cd-for-windows-11-thinkpad-x13s-gen-1-type-21bx-21by?category=BIOS%2FUEFI
Revision History:
Revision | Date | Description |
---|---|---|
1 | 2023-01-03 | Initial release |
For a complete list of all Lenovo Product Security Advisories, click here.
For the most up to date information, please remain current with updates and advisories from Lenovo regarding your equipment and software. The information provided in this advisory is provided on an “as is” basis without any warranty or guarantee of any kind. Lenovo reserves the right to change or update this advisory at any time.
Your feedback helps to improve the overall experience