Vulnerability Monitor

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CVE-2017-1000372

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.

Published

2017-06-19T16:29:00.453

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	openbsd	openbsd	≤ 6.1	Yes

References

http://www.securityfocus.com/bid/99172 Third Party Advisory, VDB Entry ([email protected])
https://ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig Mailing List, Vendor Advisory ([email protected])
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/99172 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)