SB2025020377 - Double free in Linux kernel smb client
Published: February 3, 2025
Security Bulletin ID
SB2025020377
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) Double free (CVE-ID: CVE-2025-21673)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the clean_demultiplex_info() and cifs_put_tcp_session() functions in fs/smb/client/connect.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.