CVE-2016-6246: Input Validation

Published Mar 7, 2017
·
Updated

OpenBSD 5.8 and 5.9 allows certain local users with kern.usermount privileges to cause a denial of service (kernel panic) by mounting a tmpfs with a VNOVAL in the (1) username, (2) groupname, or (3) device name of the root node.

Affected Software

2 affected components
OpenBSD OpenBSD=5.8
OpenBSD OpenBSD=5.9

Event History

Mar 7, 2017
CVE Published
via MITRE·04:00 PM
Data Sourced
via MITRE·04:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2016-6246?

CVE-2016-6246 has a medium severity classification due to its potential to cause a denial of service through kernel panic.

2

How do I fix CVE-2016-6246?

To fix CVE-2016-6246, upgrade your OpenBSD system to versions 5.8 or 5.9 that have been patched against this vulnerability.

3

Who is affected by CVE-2016-6246?

CVE-2016-6246 affects local users on OpenBSD 5.8 and 5.9 who have kern.usermount privileges.

4

What type of attack is CVE-2016-6246 related to?

CVE-2016-6246 is related to a denial of service attack that can trigger a kernel panic.

5

Is CVE-2016-6246 an exploitable vulnerability?

Yes, CVE-2016-6246 is considered exploitable as it allows certain local users to cause a disruption in system service.

Contact

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