SB2017041016 - Fedora 26 update for proftpd
Published: April 10, 2017 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2017-7418)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to access sensitive information.
The vulnerability exists due to incorrect implementation of the AllowChrootSymlinks option that checks only the last path component when enforcing it. A local user with ability to manage own FTP home directory can create a specially crafted symbolic link and gain unauthorized access to the filesystem.
Remediation
Install update from vendor's website.