# CVE-2018-15671: Denial of service in n/a

> Attackers can cause denial of service in applications using the HDF5 library by providing a crafted file that triggers excessive stack consumption.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 21 Aug 2018
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2018-15671, ECHO-c070-6c41-0055, GHSA-rr7g-hmc4-3pm3, UBUNTU-CVE-2018-15671

## What is CVE-2018-15671?

CVE-2018-15671 is a medium-severity denial of service vulnerability in Hdfgroup Hdf5, published on 21 Aug 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in the HDF HDF5 1.10.2 library. Excessive stack consumption has been detected in the function H5P__get_cb() in H5Pint.c during an attempted parse of a crafted HDF file. This results in denial of service.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2018-15671?

It affects 1 product.


Products: Hdfgroup Hdf5.

## How do I fix CVE-2018-15671?

Upgrade to a fixed version.

## Is CVE-2018-15671 being exploited?

There is no known exploitation of CVE-2018-15671 in the wild and no public exploit code.

## Other vulnerabilities in Hdfgroup Hdf5

- [CVE-2024-32608](https://insights.sbomify.com/CVE-2024-32608/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-29157](https://insights.sbomify.com/CVE-2024-29157/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-29159](https://insights.sbomify.com/CVE-2024-29159/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-29164](https://insights.sbomify.com/CVE-2024-29164/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-32611](https://insights.sbomify.com/CVE-2024-32611/): Other in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-15671 and fix it if it is affected.

What it is: CVE-2018-15671 is a medium-severity denial of service vulnerability in Hdfgroup Hdf5, published on 21 Aug 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-15671 in the wild and no public exploit code.

Affected product: Hdfgroup Hdf5. 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-2018-15671/ (Markdown: https://insights.sbomify.com/CVE-2018-15671/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-15671
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-15671
- OSV: https://osv.dev/vulnerability/CVE-2018-15671

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-15671/
Summaries are generated and may contain mistakes; the official description above is the record.