What is CVE-2017-18018?

CVE-2017-18018 is a high-severity vulnerability in Gnu Coreutils, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.1/10. Published 2018-01-04.

How severe is CVE-2017-18018?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2017-18018 known to be exploited?

31 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Gnu Coreutils

CVE-2017-18018

In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain file with a symlink during use of the POSIX "-R -L" options, which allows local users to modify the ownership of arbitrary files by leve…

Vulnerability class: Race Condition

EPSS: 0.003 (27.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Gnu Coreutils
N/a — versions n/a

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2017-18018?: CVE-2017-18018 is a high-severity vulnerability in Gnu Coreutils, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.1/10. Published 2018-01-04.
How severe is CVE-2017-18018?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2017-18018 known to be exploited?: 31 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.