CVE-2016-6239

low-risk
Published 2017-03-07

The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.

Do I need to act?

-
0.14% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Openbsd

References (12)

Release Notes http://www.openbsd.org/errata58.html
Release Notes http://www.openbsd.org/errata59.html
Mailing List http://www.openwall.com/lists/oss-security/2016/07/14/5
Exploit http://www.openwall.com/lists/oss-security/2016/07/17/7
http://www.securityfocus.com/bid/91805
http://www.securitytracker.com/id/1036318
Release Notes http://www.openbsd.org/errata58.html
Release Notes http://www.openbsd.org/errata59.html
Mailing List http://www.openwall.com/lists/oss-security/2016/07/14/5
Exploit http://www.openwall.com/lists/oss-security/2016/07/17/7
http://www.securityfocus.com/bid/91805
http://www.securitytracker.com/id/1036318
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low