SB2025042236 - Use-after-free in Linux kernel smb server
Published: April 22, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025042236
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-2025-38575)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the kfree() function in fs/smb/server/auth.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1de7fec4d3012672e31eeb6679ea60f7ca010ef9
- https://git.kernel.org/stable/c/3e341dbd5f5a6e5a558e67da80731dc38a7f758c
- https://git.kernel.org/stable/c/46caeae23035192b9cc41872c827f30d0233f16e
- https://git.kernel.org/stable/c/571b342d4688801fc1f6a1934389dac09425dc93
- https://git.kernel.org/stable/c/6171063e9d046ffa46f51579b2ca4a43caef581a
- https://git.kernel.org/stable/c/a6b594868268c3a7bfaeced912525cd2c445529a
- https://git.kernel.org/stable/c/aef10ccd74512c52e30c5ee19d0031850973e78d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11