CVE-2017-18018

medium

Description

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 leveraging a race condition.

Details

Source: Mitre, NVD

Published: 2018-01-04

Updated: 2018-01-19

Risk Information

CVSS v2

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical