CVE-2017-1000367

Exp

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.

Published: 2017-06-05 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-1000367 is rated High Exploit Risk (74.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 19.92%, 95th percentile). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-1000367

EDB-ID Source Kind Published Link
42183 exploit_db edb 2017-06-14 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-1000367

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-27 19.43% 19.92% +0.48%
2 2026-03-25 20.74% 19.43% -1.30%
3 2026-03-21 — 20.74% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-1000367

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 3.0 MEDIUM
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.5 5.9 [email protected]
6.9 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.4 10.0 [email protected]

Weakness enumeration for CVE-2017-1000367

OS Trackers for CVE-2017-1000367

vendor priority summary link
debian not yet assigned CVE-2017-1000367 not yet assigned priority: Debian including 1 source packages (sudo), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-1000367
gentoo high CVE-2017-1000367: 1 GLSA(s) (201705-15), 1 atom(s) (app-admin/sudo); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-1000367
redhat high — https://access.redhat.com/security/cve/CVE-2017-1000367
suse high CVE-2017-1000367 severity important: SUSE including 290 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 384 product×package rows across 91 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (91 product lines)): Known Affected 157, Fixed 148, Known Not Affected 79. https://www.suse.com/security/cve/CVE-2017-1000367/
ubuntu high CVE-2017-1000367 high priority: Ubuntu including 1 source packages (sudo), 5 status rows across 5 suites (trusty, upstream, xenial, yakkety, zesty): released 4, needs-triage 1. https://ubuntu.com/security/CVE-2017-1000367

Affected software / configurations for CVE-2017-1000367

Vendor Product Version Raw CPE
sudo_project sudo <= 1.8.20 cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

References for CVE-2017-1000367

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