What is CVE-2017-18188?

CVE-2017-18188 is a medium-severity vulnerability in Openr Opentmpfiles, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2018-02-14.

How severe is CVE-2017-18188?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Openr Opentmpfiles

CVE-2017-18188

OpenRC opentmpfiles through 0.1.3, when the fs.protected_hardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run.

EPSS: 0.004 (33.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Openr Opentmpfiles
N/a — versions n/a

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-18188?: CVE-2017-18188 is a medium-severity vulnerability in Openr Opentmpfiles, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2018-02-14.
How severe is CVE-2017-18188?: Medium severity. CVSS v3 base score is 5.5 out of 10.