# CVE-2023-43576: Memory corruption in Desktop BIOS

> A local attacker with elevated privileges can execute arbitrary code via a buffer overflow in Lenovo Desktop BIOS firmware.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-rwr4-c9v9-crcw

## What is CVE-2023-43576?

CVE-2023-43576 is a medium-severity memory corruption vulnerability in Lenovo Desktop BIOS, published on 8 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A buffer overflow was reported in the WMISwSmi module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-43576?

It affects 111 products.


Products: Lenovo Ideacentre 3-07ada05 Firmware, Lenovo Ideacentre 3-07imb05 Firmware, Lenovo Ideacentre 5-14acn6 Firmware, Lenovo Ideacentre 5-14imb05 Firmware, Lenovo Ideacentre 5-14iob6 Firmware, Lenovo Ideacentre 5 14iab7 Firmware, Lenovo Ideacentre 5 14irb8 Firmware, Lenovo Ideacentre Aio 3-22iil5 Firmware, Lenovo Ideacentre Aio 3-22imb05 Firmware, Lenovo Ideacentre Aio 3-22itl6 Firmware, Lenovo Ideacentre Aio 3-24alc6 Firmware, Lenovo Ideacentre Aio 3-24iil5 Firmware, Lenovo Ideacentre Aio 3-24imb05 Firmware, Lenovo Ideacentre Aio 3-24itl6 Firmware, Lenovo Ideacentre Aio 3-27imb05 Firmware, Lenovo Ideacentre Aio 3-27itl6 Firmware, Lenovo Ideacentre Aio 3 21itl7 Firmware, Lenovo Ideacentre Aio 3 22iap7 Firmware, Lenovo Ideacentre Aio 3 24iap7 Firmware, Lenovo Ideacentre Aio 3 27iap7 Firmware and 91 more.

## How do I fix CVE-2023-43576?

No fix has been published for CVE-2023-43576 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-43576 being exploited?

There is no known exploitation of CVE-2023-43576 in the wild and no public exploit code.

## Other vulnerabilities in Lenovo Desktop BIOS

- [CVE-2023-43567](https://insights.sbomify.com/CVE-2023-43567/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43569](https://insights.sbomify.com/CVE-2023-43569/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43570](https://insights.sbomify.com/CVE-2023-43570/): Code injection in Desktop BIOS (medium 6.7)
- [CVE-2023-43571](https://insights.sbomify.com/CVE-2023-43571/): Memory corruption in Desktop BIOS (medium 6.7)
- [CVE-2023-43573](https://insights.sbomify.com/CVE-2023-43573/): Memory corruption in Desktop BIOS (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-43576 and fix it if it is affected.

What it is: CVE-2023-43576 is a medium-severity memory corruption vulnerability in Lenovo Desktop BIOS, published on 8 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-43576 in the wild and no public exploit code.

Affected product: Lenovo Desktop BIOS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-43576/ (Markdown: https://insights.sbomify.com/CVE-2023-43576/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-43576
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-43576
- OSV: https://osv.dev/vulnerability/CVE-2023-43576

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-43576/
Summaries are generated and may contain mistakes; the official description above is the record.