CVE-2017-1000372

9.8 CRITICAL
Published: June 19, 2017 Modified: May 13, 2026
View on NVD

Description

A flaw exists in OpenBSD's implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using setuid binaries such as /usr/bin/at. This affects OpenBSD 6.1 and possibly earlier versions.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/99172
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig
Source: cve@mitre.org
Mailing List Vendor Advisory
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.securityfocus.com/bid/99172
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Vendor Advisory
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
4.0%
89th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

openbsd