Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation…
Priority LOW 39CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.08068 94th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD and the CNA
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* | up to 1.8.20 | Vulnerable | Sudo project |
- cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* Versions up to 1.8.20 Vulnerable ·Sudo project
Remediation
Red Hat 2 advisories
- RHSA-2017:1382 Released 2017-05-30 · Red Hat rating Importantsudo security update
- Red Hat Enterprise Linux Client (v. 7) sudo-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux Client Optional (v. 7) sudo-devel-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux ComputeNode (v. 7) sudo-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) sudo-devel-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux Desktop (v. 6) sudo-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux Desktop Optional (v. 6) sudo-devel-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux HPC Node (v. 6) sudo-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux HPC Node Optional (v. 6) sudo-devel-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux Server (v. 6) sudo-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux Server (v. 7) sudo-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux Server Optional (v. 6) sudo-devel-1.8.6p3-28.el6_9, sudo-devel-1.8.6p3-28.el6_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) sudo-devel-1.8.6p7-22.el7_3, sudo-devel-1.8.6p7-22.el7_3.ppc
- Red Hat Enterprise Linux Workstation (v. 6) sudo-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux Workstation (v. 7) sudo-1.8.6p7-22.el7_3
- Red Hat Enterprise Linux Workstation Optional (v. 6) sudo-devel-1.8.6p3-28.el6_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) sudo-devel-1.8.6p7-22.el7_3
- RHSA-2017:1381 Released 2017-05-30 · Red Hat rating Importantsudo security update
- Red Hat Enterprise Linux Server (v. 5 ELS) sudo-1.7.2p1-30.el5_11, sudo-1.7.2p1-30.el5_11.i386
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Server (v. 5 ELS) | Fixed | RHSA-2017:1381 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:1382 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1382 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1000367
- 2026-10-03 Alias added: GHSA-4c2x-g299-mpv8
References
Exploit 3
Advisory 11
More Sudo project Sudo vulnerabilities
- TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
- TI-2021-02242 Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer… KEVCVSS 3.1HIGH 7.8
- TI-2019-10640 In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass… CVSS 3.1HIGH 8.8
- TI-2023-08978 In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed… CVSS 3.1HIGH 7.8
- TI-2019-13477 In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a… CVSS 3.1HIGH 7.8
- TI-2025-23529 Incorrect authorization in Sudo CVSS 3.1HIGH 8.8
Sources
- CVE-2017-1000367 · CVE Program
- CVE-2017-1000367 · NVD
- FIRST EPSS
- GHSA-4c2x-g299-mpv8 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-1000367 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences