vulnerability

Debian: CVE-2023-1076: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:N)
Published
Mar 27, 2023
Added
May 1, 2023
Modified
Jan 28, 2025

Description

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.

Solution

debian-upgrade-linux
Title
NEW

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