# CVE-2024-3447: Qemu: sdhci: heap buffer overflow in sdhci_write_dataport()

> A heap buffer overflow in QEMU's SDHCI emulation allows a malicious guest to crash the host process, causing denial of service.

- **Severity:** Medium 6.0 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/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:** Yes
- **Published:** 14 Nov 2024
- **Updated:** 12 May 2026
- **Also known as:** AZL-60196, AZL-60901, DEBIAN-CVE-2024-3447, GHSA-mq5w-grf9-5rp9, UBUNTU-CVE-2024-3447

## What is CVE-2024-3447?

CVE-2024-3447 is a medium-severity memory corruption vulnerability in Netapp Hci Compute Node, published on 14 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of  `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Weakness: CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2024-3447?

It affects 2 products.


Products: Netapp Hci Compute Node, Qemu Qemu.

## How do I fix CVE-2024-3447?

Apply the vendor's patch.

## Is CVE-2024-3447 being exploited?

There is no known exploitation of CVE-2024-3447 in the wild and no public exploit code.

## Other vulnerabilities in Netapp Hci Compute Node

- [CVE-2025-0509](https://insights.sbomify.com/CVE-2025-0509/): Signing Checks Bypass (high 7.3)
- [CVE-2025-27423](https://insights.sbomify.com/CVE-2025-27423/): Improper Input Validation in Vim (high 7.1)
- [CVE-2025-26603](https://insights.sbomify.com/CVE-2025-26603/): heap-use-after-free in function str_to_reg in vim/vim (medium 4.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-3447 and fix it if it is affected.

What it is: CVE-2024-3447 is a medium-severity memory corruption vulnerability in Netapp Hci Compute Node, published on 14 Nov 2024. 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-2024-3447 in the wild and no public exploit code.

Affected product: Netapp Hci Compute Node. 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-2024-3447/ (Markdown: https://insights.sbomify.com/CVE-2024-3447/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-3447
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-3447
- OSV: https://osv.dev/vulnerability/CVE-2024-3447

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-3447/
Summaries are generated and may contain mistakes; the official description above is the record.