SB2024030663 - Fedora 39 update for grub2
Published: March 6, 2024
Security Bulletin ID
SB2024030663
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) Resource management error (CVE-ID: CVE-2024-1048)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an error in the grub2-set-bootflag utility of grub2. The grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program is killed before the rename operation, the temporary file will not be removed and may fill the filesystem when invoked multiple times, resulting in a filesystem out of free inodes or blocks.
Remediation
Install update from vendor's website.