SB20250226571 - Double free in Linux kernel cifs
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226571
CSH 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 vulnerability.
1) Double free (CVE-ID: CVE-2022-49541)
CWE-ID: CWE-415 - Double Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
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 cifs_smb3_do_mount() function in fs/cifs/cifsfs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/8378a51e3f8140f60901fb27208cc7a6e47047b5
- https://git.kernel.org/stable/c/9a167fc440e5693c1cdd7f07071e05658bd9d89d
- https://git.kernel.org/stable/c/ce0008a0e410cdd95f0d8cd81b2902ec10a660c4
- https://git.kernel.org/stable/c/ee71f8f1cd3c8c4a251fd3e8abc89215ae3457cb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3