CVE-2023-1076
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMar 27, 2023
First seenMar 27, 2023
Weakness typeCWE-791CWE-791
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | No range specified | — |
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