CVE-2023-1076 (GCVE-0-2023-1076)

Vulnerability from cvelistv5 – Published: 2023-03-27 00:00 – Updated: 2025-02-24 17:04
VLAI?
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel Affected: unknown
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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