CVE-2016-6239

Public Exploit

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.13%
Third-Party Advisory openwall.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1036318 vdb entry
http://www.openbsd.org/errata59.html release notes
http://www.openwall.com/lists/oss-security/2016/07/14/5 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2016/07/17/7 mailing list third party advisory exploit
http://www.openbsd.org/errata58.html release notes
http://www.securityfocus.com/bid/91805 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-6239?
CVE-2016-6239 has been scored as a medium severity vulnerability.
How to fix CVE-2016-6239?
To fix CVE-2016-6239, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6239 being actively exploited in the wild?
It is possible that CVE-2016-6239 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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