SB20250422178 - Input validation error in Linux kernel net can driver
Published: April 22, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250422178
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-47669)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the vxcan_xmit() function in drivers/net/can/vxcan.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105
- https://git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cb
- https://git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052
- https://git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70
- https://git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.11