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

Affected SoftwareAffected VersionHow to fix
Lenovo K14 Type 21CU Firmware<1.12
Lenovo k14 type 21cu firmware
Lenovo K14 Type 21CV<1.12
Lenovo K14 Type 21CV Firmware
Lenovo ThinkPad S2 Yoga Gen 8 Firmware<1.10
Lenovo ThinkPad S2 Gen 8
Lenovo ThinkPad E14 Gen 3<1.15
Lenovo ThinkPad E14 Gen 3 Firmware
Lenovo ThinkPad E15 Gen 3<1.15
Lenovo ThinkPad E15 Gen 3 Firmware
Lenovo ThinkPad L13 Gen 2<1.30
Lenovo ThinkPad L13 Gen 2 Firmware
Lenovo ThinkPad L13 Yoga Gen 3 Firmware<1.19
Lenovo ThinkPad L13 Yoga Gen 3
Lenovo ThinkPad L13 Gen 4 Firmware<1.10
Lenovo ThinkPad L13 Gen 4 Firmware
Lenovo ThinkPad L13 Yoga Gen 4<1.10
Lenovo ThinkPad L13 Yoga Gen 4 Firmware
Lenovo ThinkPad L13 Yoga Gen 2<1.30
Lenovo 13w Yoga Gen 2 Firmware
Lenovo ThinkPad L13 Yoga Gen 3<1.19
Lenovo ThinkPad L13 Yoga Gen 3 Firmware
Lenovo ThinkPad L14 Gen 2<1.28
Lenovo ThinkPad L14
Lenovo ThinkPad L14 Gen 3 Firmware<1.23
Lenovo ThinkPad L14 Gen 3 Firmware
Lenovo ThinkPad L14 Gen 4 firmware<1.06
lenovo ThinkPad L14 Gen 4 firmware
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 Firmware
Lenovo ThinkPad L15 Gen 4<1.06
Lenovo ThinkPad L15 Gen 4 Firmware
Lenovo ThinkPad P14s Gen 2<1.34
Lenovo ThinkPad P14s Gen 2
Lenovo Thinkpad T14 Gen 2<1.34
Lenovo Thinkpad T14 Gen 2
Lenovo Thinkpad T14s Gen 2 Firmware<1.37
Lenovo ThinkPad T14s Gen 2i
Lenovo ThinkPad S2 Yoga Gen 6 Firmware<1.30
Lenovo ThinkPad S2 Yoga Gen 6 Firmware
Lenovo ThinkPad S2 Yoga Gen 7 Firmware<1.19
Lenovo ThinkPad S2 Gen 7 Firmware
Lenovo ThinkPad S2 Yoga Gen 8 Firmware<1.10
lenovo ThinkPad s2 gen 8 firmware
Lenovo ThinkPad S2 Yoga Gen 6 Firmware<1.30
Lenovo ThinkPad S2 Yoga Gen 6 Firmware
Lenovo ThinkPad S2 Yoga Gen 7<1.19
Lenovo ThinkPad S2 Yoga Gen 7
Lenovo ThinkPad X13 Gen 2 Firmware<1.37
Lenovo ThinkPad X13 Gen 2i
All of
Lenovo K14 Type 21CU Firmware<1.12
Lenovo k14 type 21cu firmware
All of
Lenovo K14 Type 21CV<1.12
Lenovo K14 Type 21CV Firmware
All of
Lenovo ThinkPad S2 Yoga Gen 8 Firmware<1.10
Lenovo ThinkPad S2 Gen 8
All of
Lenovo ThinkPad E14 Gen 3<1.15
Lenovo ThinkPad E14 Gen 3 Firmware
All of
Lenovo ThinkPad E15 Gen 3<1.15
Lenovo ThinkPad E15 Gen 3 Firmware
All of
Lenovo ThinkPad L13 Gen 2<1.30
Lenovo ThinkPad L13 Gen 2 Firmware
All of
Lenovo ThinkPad L13 Yoga Gen 3 Firmware<1.19
Lenovo ThinkPad L13 Yoga Gen 3
All of
Lenovo ThinkPad L13 Gen 4 Firmware<1.10
Lenovo ThinkPad L13 Gen 4 Firmware
All of
Lenovo ThinkPad L13 Yoga Gen 4<1.10
Lenovo ThinkPad L13 Yoga Gen 4 Firmware
All of
Lenovo ThinkPad L13 Yoga Gen 2<1.30
Lenovo 13w Yoga Gen 2 Firmware
All of
Lenovo ThinkPad L13 Yoga Gen 3<1.19
Lenovo ThinkPad L13 Yoga Gen 3 Firmware
All of
Lenovo ThinkPad L14 Gen 2<1.28
Lenovo ThinkPad L14
All of
Lenovo ThinkPad L14 Gen 3 Firmware<1.23
Lenovo ThinkPad L14 Gen 3 Firmware
All of
Lenovo ThinkPad L14 Gen 4 firmware<1.06
lenovo ThinkPad L14 Gen 4 firmware
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 Firmware
All of
Lenovo ThinkPad L15 Gen 4<1.06
Lenovo ThinkPad L15 Gen 4 Firmware
All of
Lenovo ThinkPad P14s Gen 2<1.34
Lenovo ThinkPad P14s Gen 2
All of
Lenovo Thinkpad T14 Gen 2<1.34
Lenovo Thinkpad T14 Gen 2
All of
Lenovo Thinkpad T14s Gen 2 Firmware<1.37
Lenovo ThinkPad T14s Gen 2i
All of
Lenovo ThinkPad S2 Yoga Gen 6 Firmware<1.30
Lenovo ThinkPad S2 Yoga Gen 6 Firmware
All of
Lenovo ThinkPad S2 Yoga Gen 7 Firmware<1.19
Lenovo ThinkPad S2 Gen 7 Firmware
All of
Lenovo ThinkPad S2 Yoga Gen 8 Firmware<1.10
lenovo ThinkPad s2 gen 8 firmware
All of
Lenovo ThinkPad S2 Yoga Gen 6 Firmware<1.30
Lenovo ThinkPad S2 Yoga Gen 6 Firmware
All of
Lenovo ThinkPad S2 Yoga Gen 7<1.19
Lenovo ThinkPad S2 Yoga Gen 7
All of
Lenovo ThinkPad X13 Gen 2 Firmware<1.37
Lenovo ThinkPad X13 Gen 2i

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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