medium
6.7
CWE
120 119
Advisory Published
Updated

CVE-2023-4029: Buffer Overflow

First published: Thu Aug 17 2023(Updated: )

A buffer overflow has been identified in the BoardUpdateAcpiDxe driver in some Lenovo ThinkPad products which may allow an attacker with local access and elevated privileges to execute arbitrary code.

Credit: psirt@lenovo.com psirt@lenovo.com

Affected SoftwareAffected VersionHow to fix
Lenovo K14 Type 21cu Firmware<1.12
Lenovo K14 Type 21cu
Lenovo K14 Type 21cv Firmware<1.12
Lenovo K14 Type 21cv
Lenovo Thinkpad S2 Yoga Gen 8 Firmware<1.10
Lenovo Thinkpad S2 Yoga Gen 8
Lenovo Thinkpad E14 Gen 3 Firmware<1.15
Lenovo Thinkpad E14 Gen 3
Lenovo Thinkpad E15 Gen 3 Firmware<1.15
Lenovo Thinkpad E15 Gen 3
Lenovo Thinkpad L13 Gen 2 Firmware<1.30
Lenovo Thinkpad L13 Gen 2
Lenovo Thinkpad L13 Gen 3 Firmware<1.19
Lenovo Thinkpad L13 Gen 3
Lenovo Thinkpad L13 Gen 4 Firmware<1.10
Lenovo Thinkpad L13 Gen 4
Lenovo Thinkpad L13 Yoga Gen 4 Firmware<1.10
Lenovo Thinkpad L13 Yoga Gen 4
Lenovo Thinkpad L13 Yoga Gen 2 Firmware<1.30
Lenovo Thinkpad L13 Yoga Gen 2
Lenovo Thinkpad L13 Yoga Gen 3 Firmware<1.19
Lenovo Thinkpad L13 Yoga Gen 3
Lenovo Thinkpad L14 Gen 2 Firmware<1.28
Lenovo Thinkpad L14 Gen 2
Lenovo Thinkpad L14 Gen 3 Firmware<1.23
Lenovo Thinkpad L14 Gen 3
Lenovo Thinkpad L14 Gen 4 Firmware<1.06
Lenovo Thinkpad L14 Gen 4
Lenovo Thinkpad L15 Gen 2 Firmware<1.28
Lenovo Thinkpad L15 Gen 2
Lenovo Thinkpad L15 Gen 3 Firmware<1.23
Lenovo Thinkpad L15 Gen 3
Lenovo Thinkpad L15 Gen 4 Firmware<1.06
Lenovo Thinkpad L15 Gen 4
Lenovo Thinkpad P14s Gen 2 Firmware<1.34
Lenovo Thinkpad P14s Gen 2
Lenovo Thinkpad T14 Gen 2 Firmware<1.34
Lenovo Thinkpad T14 Gen 2
Lenovo Thinkpad T14s Gen 2 Firmware<1.37
Lenovo Thinkpad T14s Gen 2
Lenovo Thinkpad S2 Gen 6 Firmware<1.30
Lenovo Thinkpad S2 Gen 6
Lenovo Thinkpad S2 Gen 7 Firmware<1.19
Lenovo Thinkpad S2 Gen 7
Lenovo Thinkpad S2 Gen 8 Firmware<1.10
Lenovo Thinkpad S2 Gen 8
Lenovo Thinkpad S2 Yoga Gen 6 Firmware<1.30
Lenovo Thinkpad S2 Yoga Gen 6
Lenovo Thinkpad S2 Yoga Gen 7 Firmware<1.19
Lenovo Thinkpad S2 Yoga Gen 7
Lenovo Thinkpad X13 Gen 2 Firmware<1.37
Lenovo Thinkpad X13 Gen 2
All of
Lenovo K14 Type 21cu Firmware<1.12
Lenovo K14 Type 21cu
All of
Lenovo K14 Type 21cv Firmware<1.12
Lenovo K14 Type 21cv
All of
Lenovo Thinkpad S2 Yoga Gen 8 Firmware<1.10
Lenovo Thinkpad S2 Yoga Gen 8
All of
Lenovo Thinkpad E14 Gen 3 Firmware<1.15
Lenovo Thinkpad E14 Gen 3
All of
Lenovo Thinkpad E15 Gen 3 Firmware<1.15
Lenovo Thinkpad E15 Gen 3
All of
Lenovo Thinkpad L13 Gen 2 Firmware<1.30
Lenovo Thinkpad L13 Gen 2
All of
Lenovo Thinkpad L13 Gen 3 Firmware<1.19
Lenovo Thinkpad L13 Gen 3
All of
Lenovo Thinkpad L13 Gen 4 Firmware<1.10
Lenovo Thinkpad L13 Gen 4
All of
Lenovo Thinkpad L13 Yoga Gen 4 Firmware<1.10
Lenovo Thinkpad L13 Yoga Gen 4
All of
Lenovo Thinkpad L13 Yoga Gen 2 Firmware<1.30
Lenovo Thinkpad L13 Yoga Gen 2
All of
Lenovo Thinkpad L13 Yoga Gen 3 Firmware<1.19
Lenovo Thinkpad L13 Yoga Gen 3
All of
Lenovo Thinkpad L14 Gen 2 Firmware<1.28
Lenovo Thinkpad L14 Gen 2
All of
Lenovo Thinkpad L14 Gen 3 Firmware<1.23
Lenovo Thinkpad L14 Gen 3
All of
Lenovo Thinkpad L14 Gen 4 Firmware<1.06
Lenovo Thinkpad L14 Gen 4
All of
Lenovo Thinkpad L15 Gen 2 Firmware<1.28
Lenovo Thinkpad L15 Gen 2
All of
Lenovo Thinkpad L15 Gen 3 Firmware<1.23
Lenovo Thinkpad L15 Gen 3
All of
Lenovo Thinkpad L15 Gen 4 Firmware<1.06
Lenovo Thinkpad L15 Gen 4
All of
Lenovo Thinkpad P14s Gen 2 Firmware<1.34
Lenovo Thinkpad P14s Gen 2
All of
Lenovo Thinkpad T14 Gen 2 Firmware<1.34
Lenovo Thinkpad T14 Gen 2
All of
Lenovo Thinkpad T14s Gen 2 Firmware<1.37
Lenovo Thinkpad T14s Gen 2
All of
Lenovo Thinkpad S2 Gen 6 Firmware<1.30
Lenovo Thinkpad S2 Gen 6
All of
Lenovo Thinkpad S2 Gen 7 Firmware<1.19
Lenovo Thinkpad S2 Gen 7
All of
Lenovo Thinkpad S2 Gen 8 Firmware<1.10
Lenovo Thinkpad S2 Gen 8
All of
Lenovo Thinkpad S2 Yoga Gen 6 Firmware<1.30
Lenovo Thinkpad S2 Yoga Gen 6
All of
Lenovo Thinkpad S2 Yoga Gen 7 Firmware<1.19
Lenovo Thinkpad S2 Yoga Gen 7
All of
Lenovo Thinkpad X13 Gen 2 Firmware<1.37
Lenovo Thinkpad X13 Gen 2

Remedy

Update system firmware to the version (or newer) indicated for your model in the Product Impact section in LEN-134879.

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Reference Links

Frequently Asked Questions

  • What is CVE-2023-4029?

    CVE-2023-4029 is a buffer overflow vulnerability in the BoardUpdateAcpiDxe driver in some Lenovo ThinkPad products.

  • What is the severity of CVE-2023-4029?

    The severity of CVE-2023-4029 is medium with a severity value of 6.7.

  • How can an attacker exploit CVE-2023-4029?

    An attacker with local access and elevated privileges can exploit CVE-2023-4029 to execute arbitrary code.

  • Which Lenovo ThinkPad products are affected by CVE-2023-4029?

    Lenovo ThinkPad products with the BoardUpdateAcpiDxe driver are affected by CVE-2023-4029.

  • How can I fix CVE-2023-4029?

    To fix CVE-2023-4029, it is recommended to apply the latest firmware update provided by Lenovo.

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