SB20220111106 - Fedora 35 update for systemd
Published: January 11, 2022
Security Bulletin ID
SB20220111106
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Uncontrolled recursion (CVE-ID: CVE-2021-3997)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to uncontrolled recursion in systemd-tmpfiles. A local user can create multiple nested directories in the /tmp folder and case systemd to crash during the system boot.
Remediation
Install update from vendor's website.