Vulnerability in OpenBSD
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 · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- www.qualys.com/2017/06/19/stack-clash/stack-clash.txt (Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/99172 (VDB Entry, Third Party Advisory, vdb-entry)
- ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig (Mailing List, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-1000372?
- CVE-2017-1000372 is a critical-severity vulnerability in OpenBSD. CVSS score: 9.8/10. Published 2017-06-19.
- How severe is CVE-2017-1000372?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-1000372 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.