CVE-2023-1076
Vulnerability from cvelistv5
Published
2023-03-27 00:00
Modified
2025-02-24 17:04
Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux kernel |
Version: unknown |
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