CVE-2016-6240 json
Integer truncation error in the amap_alloc function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privile…
published 2017-03-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7170
- cvss
- 7.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Integer truncation error in the amap_alloc function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privileges via a large size value.
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- openwall.com http://www.openwall.com/lists/oss-security/2016/07/17/7 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-189 Numeric Errors
References
-
openwall.com
/lists/oss-security/2016/07/17/7
mailing-list, exploit, third-party-advisory
-
securitytracker.com
/id/1036318
vdb-entry
-
openbsd.org
/errata59.html
release-notes
-
openwall.com
/lists/oss-security/2016/07/14/5
mailing-list, third-party-advisory
-
openbsd.org
/errata58.html
release-notes
-
securityfocus.com
/bid/91805
vdb-entry
Sources
- CVE List CVE-2016-6240
- NVD CVE-2016-6240
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