CVE-2023-1076 - CVE House
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Status published Unknown CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

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Affected Vendor

Affected Software

Linux kernel
Vulnerable Versions:
unknown

Timeline

Official Publish: March 27th, 2023
Last Modified: February 24th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-791

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.