Improper input validation in Openbsd

CVE-2016-6246

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (35.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Openbsd — versions 5.8, 5.9
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-6246?
CVE-2016-6246 is a medium-severity vulnerability in Openbsd, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2017-03-07.
How severe is CVE-2016-6246?
Medium severity. CVSS v3 base score is 4.4 out of 10.
Is CVE-2016-6246 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.