SB2024111926 - Use-after-free in Linux kernel smb server
Published: November 19, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024111926
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 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-50283)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __handle_ksmbd_work() function in fs/smb/server/server.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/f7557bbca40d4ca8bb1c6c940ac6c95078bd0827
- https://git.kernel.org/stable/c/c6cdc08c25a868a08068dfc319fa9fce982b8e7f
- https://git.kernel.org/stable/c/1b6ad475d4ed577d34e0157eb507be00c588bf5c
- https://git.kernel.org/stable/c/b8fc56fbca7482c1e5c0e3351c6ae78982e25ada
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.174
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.117
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.61