CVE-2023-4029 Memory corruption in ThinkPad
A buffer overflow in Lenovo ThinkPad firmware allows local attackers with elevated privileges to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-4029?
CVE-2023-4029 is a medium-severity memory corruption vulnerability in Lenovo ThinkPad, published on 17 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-120
Which versions are affected by CVE-2023-4029?
It affects 26 products.
Products include Lenovo K14 Type 21cu Firmware, Lenovo K14 Type 21cv Firmware, Lenovo Thinkpad E14 Gen 3 Firmware, Lenovo Thinkpad E15 Gen 3 Firmware, Lenovo Thinkpad L13 Gen 2 Firmware, Lenovo Thinkpad L13 Gen 3 Firmware and 20 more.
How do I fix CVE-2023-4029?
No fix has been published for CVE-2023-4029 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-4029 being exploited?
There is no known exploitation of CVE-2023-4029 in the wild and no public exploit code.
Sources
Also known as GHSA-2fr9-5jx9-gcx9.