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Lenovo Power Management Driver Windows 10Null Pointer Dereference

Risk 28
Severity
4.9
Null Pointer Dereference
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

A null pointer dereference vulnerability in Lenovo Power Management Driver for Windows 10, prior to version 1.67.17.54, that could cause systems to experience a blue screen error.

First published (updated )
CVE-2021-3463

Lenovo Power Management Driver Windows 10A privilege escalation vulnerability in Lenovo Power Management Driver for Windows 10, prior to vers…

Risk 69
Severity
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A privilege escalation vulnerability in Lenovo Power Management Driver for Windows 10, prior to version 1.67.17.54, that could allow unauthorized access to the driver's device object.

First published (updated )
CVE-2021-3462

Lenovo 330-14ast FirmwareA potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo T…

Risk 60
Severity
6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

A potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.

Remedy

Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-30042.
First published (updated )
CVE-2020-8323

Lenovo Thinkpad T490 \(20nx\) FirmwareIn Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this prov…

Risk 14
Severity
2.4
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). After resuming from S3 sleep mode in various versions of BIOS for some Lenovo ThinkPad systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.

Remedy

No action required. Lenovo has updated BIOS for systems in the product impact section to implement this secondary protection, PRx.
First published (updated )
CVE-2020-8341

Lenovo Thinkpad E14 FirmwareLenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll …

Risk 62
Severity
6.8
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

Remedy

Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-30042.
First published (updated )
CVE-2020-8336

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