SB2018010433 - Race condition in GNU coreutils
Published: January 4, 2018 Updated: August 3, 2020
Security Bulletin ID
SB2018010433
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2017-18018)
The vulnerability allows a local authenticated user to manipulate data.
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.
Remediation
Install update from vendor's website.