CVE-2017-18018

Public Exploit

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory gnu.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html third party advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2017-18018?
CVE-2017-18018 has been scored as a medium severity vulnerability.
How to fix CVE-2017-18018?
To fix CVE-2017-18018, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18018 being actively exploited in the wild?
It is possible that CVE-2017-18018 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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