SB2021113016 - Privilege escalation in Installer for CoreOS disk images
Published: November 30, 2021
Security Bulletin ID
SB2021113016
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) Incorrect default permissions (CVE-ID: CVE-2021-3917)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions on the "/boot/ignition{,/config.ign}". A local user with access to the system can view contents of files and directories or modify them.
Remediation
Install update from vendor's website.