5.5
Medium
CVE-2023-1076 A flaw was found in the Linux Kernel
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux kernel | Versions not published |
References
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- [debian-lts-announce] 20230502 [SECURITY] [DLA 3404-1] linux-5.10 security update lists.debian.org
Timeline
- Published
- Last modified
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