SB2023110332 - Use-after-free in Linux kernel btrfs
Published: November 3, 2023
Security Bulletin ID
SB2023110332
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) Use-after-free (CVE-ID: CVE-2023-4394)
The vulnerability allows a local privileged user to gain access to sensitive information or perform a denial of service attack.
The vulnerability exists due to a use-after-free error within the btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system. A local privileged user can trigger a use-after-free error and gain access to sensitive information or perform a denial of service attack.
Remediation
Install update from vendor's website.