SB20240604109 - Out-of-bounds read in Linux kernel ksmbd
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240604109
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) Out-of-bounds read (CVE-ID: CVE-2023-52441)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to an out-of-bounds read error within the init_smb1_server() function in fs/ksmbd/smb_common.c, within the handle_ksmbd_work() and queue_ksmbd_work() functions in fs/ksmbd/server.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b
- https://git.kernel.org/stable/c/330d900620dfc9893011d725b3620cd2ee0bc2bc
- https://git.kernel.org/stable/c/aa669ef229ae8dd779da9caa24e254964545895f
- https://git.kernel.org/stable/c/536bb492d39bb6c080c92f31e8a55fe9934f452b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.145
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.53
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5