SB2025091733 - Buffer overflow in Linux kernel cifs
Published: September 17, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091733
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) Buffer overflow (CVE-ID: CVE-2022-50341)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the fill_transform_hdr() and crypt_message() functions in fs/cifs/smb2ops.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/a13e51760703f71c25d5fc1f4a62dfa4b0cc80e9
- https://git.kernel.org/stable/c/bf0543b93740916ee91956f9a63da6fc0d79daaa
- https://git.kernel.org/stable/c/e8d16a54842d609fd4a3ed2d81d4333d6329aa94
- https://git.kernel.org/stable/c/e8e2861cc3258dbe407d01ea8c59bb5a53132301
- https://git.kernel.org/stable/c/f7f291e14dde32a07b1f0aa06921d28f875a7b54
- https://git.kernel.org/stable/c/fe6ea044c4f05706cb71040055b1c70c6c8275e0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163