Ubuntu: (Multiple Advisories) (CVE-2023-1076): Linux kernel (OEM) vulnerabilities
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(s)
- ubuntu-upgrade-linux-image-6-1-0-1009-oem
- ubuntu-upgrade-linux-image-oem-22-04c
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