Vulnerability Details : 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 leveraging a race condition.
Exploit prediction scoring system (EPSS) score for CVE-2017-18018
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-18018
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:N/I:P/A:N |
3.4
|
2.9
|
NIST |
|
4.7
|
MEDIUM | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2017-18018
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-18018
-
http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html
chown: race condition with --recursive -LExploit;Issue Tracking;Third Party Advisory
Products affected by CVE-2017-18018
- cpe:2.3:a:gnu:coreutils:*:*:*:*:*:*:*:*