Todd Miller's sudo version 1.8.20p1 and earlier is vulnerable to an input validation…
Priority LOW 36CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- 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 1.8.20p1 and earlier is vulnerable to an input validation (embedded newlines) in the get_process_ttyname() function resulting in information disclosure and command execution.
Why it matters now
EPSS 0.00573 47th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 2
| 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:1.8.20:p1:*:*:*:*:*:* | 1.8.20 p1 | Vulnerable | Sudo project |
- cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* Versions up to 1.8.20 Vulnerable ·Sudo project
- cpe:2.3:a:sudo_project:sudo:1.8.20:p1:*:*:*:*:*:* Versions 1.8.20 p1 Vulnerable ·Sudo project
Remediation
Red Hat 1 advisory
- RHSA-2017:1574 Released 2017-06-22 · Red Hat rating Moderatesudo security update
- Red Hat Enterprise Linux Client (v. 7) sudo-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux Client Optional (v. 7) sudo-devel-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux ComputeNode (v. 7) sudo-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) sudo-devel-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux Desktop (v. 6) sudo-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux Desktop Optional (v. 6) sudo-devel-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux HPC Node (v. 6) sudo-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux HPC Node Optional (v. 6) sudo-devel-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux Server (v. 5 ELS) sudo-1.7.2p1-31.el5_11, sudo-1.7.2p1-31.el5_11.i386
- Red Hat Enterprise Linux Server (v. 6) sudo-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux Server (v. 7) sudo-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux Server Optional (v. 6) sudo-devel-1.8.6p3-29.el6_9, sudo-devel-1.8.6p3-29.el6_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) sudo-devel-1.8.6p7-23.el7_3, sudo-devel-1.8.6p7-23.el7_3.ppc
- Red Hat Enterprise Linux Workstation (v. 6) sudo-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux Workstation (v. 7) sudo-1.8.6p7-23.el7_3
- Red Hat Enterprise Linux Workstation Optional (v. 6) sudo-devel-1.8.6p3-29.el6_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) sudo-devel-1.8.6p7-23.el7_3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Server (v. 5 ELS) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:1574 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1574 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1000368
- 2026-10-03 Alias added: GHSA-v7hw-ff58-vxfm
References
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-2017-1000368 · CVE Program
- CVE-2017-1000368 · NVD
- FIRST EPSS
- GHSA-v7hw-ff58-vxfm · GitHub Advisory Database · CC BY 4.0
- CVE-2017-1000368 · Red Hat security data · CC BY 4.0
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