SB20230818254 - Fedora 36 update for ceph
Published: August 18, 2023
Security Bulletin ID
SB20230818254
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect default permissions (CVE-ID: CVE-2022-3650)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to ceph-crash.service runs the ceph-crash Python script with root privileges. The script is operating in the directory /var/lib/ceph/crash which is controlled by the unprivileged ceph user. A local user can inject arbitrary data into the crash dump and force the privileged script to write that file into an arbitrary location on the system, resulting in privilege escalation.
Remediation
Install update from vendor's website.