Fixed
Created: Feb 27, 2023
Updated: Aug 13, 2023
Resolved Date: May 8, 2023
Found In Version: 10.19.45.1
Fix Version: 10.19.45.28
Severity: Standard
Applicable for: Wind River Linux LTS 19
Component/s: Kernel
A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters.
https://nvd.nist.gov/vuln/detail/CVE-2023-1076
