SB2024123078 - Use-after-free in Linux kernel smb client
Published: December 30, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024123078
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-53177)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the SMB2_query_info_free(), invalidate_all_cached_dirs(), smb2_cached_lease_break(), cached_dir_lease_break() and cfids_laundromat_worker() functions in fs/smb/client/cached_dir.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/47655a12c6b1bca8fa230085eab2e85a076932b7
- https://git.kernel.org/stable/c/791f833053578b9fd24252ebb7162a61bc3f805b
- https://git.kernel.org/stable/c/97e2afcac0bebfef6a5360f4267ce4c44507b845
- https://git.kernel.org/stable/c/a9685b409a03b73d2980bbfa53eb47555802d0a9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.64