# CVE-2024-57255: Integer overflow in U-Boot

> An integer overflow in U-Boot allows attackers to cause memory corruption and potentially execute code via a crafted squashfs filesystem.

- **Severity:** High 7.1 (`CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Feb 2025
- **Updated:** 3 Nov 2025
- **Also known as:** DEBIAN-CVE-2024-57255, GHSA-5cmq-wrwp-9x26, UBUNTU-CVE-2024-57255

## What is CVE-2024-57255?

CVE-2024-57255 is a high-severity vulnerability in denx U-Boot, published on 18 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2024-57255?

It affects 1 product.


Products: Denx U-Boot.

## How do I fix CVE-2024-57255?

Upgrade to a fixed version.

## Is CVE-2024-57255 being exploited?

There is no known exploitation of CVE-2024-57255 in the wild and no public exploit code.

## Other vulnerabilities in denx U-Boot

- [CVE-2022-34835](https://insights.sbomify.com/CVE-2022-34835/): Integer overflow in n/a (critical 9.8)
- [CVE-2022-30767](https://insights.sbomify.com/CVE-2022-30767/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-8432](https://insights.sbomify.com/CVE-2020-8432/): Use after free in n/a (critical 9.8)
- [CVE-2019-14192](https://insights.sbomify.com/CVE-2019-14192/): Integer overflow in n/a (critical 9.8)
- [CVE-2019-14193](https://insights.sbomify.com/CVE-2019-14193/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-57255 and fix it if it is affected.

What it is: CVE-2024-57255 is a high-severity vulnerability in denx U-Boot, published on 18 Feb 2025. 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-2024-57255 in the wild and no public exploit code.

Affected product: denx U-Boot. 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-2024-57255/ (Markdown: https://insights.sbomify.com/CVE-2024-57255/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-57255
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-57255
- OSV: https://osv.dev/vulnerability/CVE-2024-57255

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-57255/
Summaries are generated and may contain mistakes; the official description above is the record.