Access of Resource Using Incompatible Type ('Type Confusion') Affecting kernel-doc package, versions <0:5.14.0-362.8.1.el9_3


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELDOC-6066530
  • published17 Nov 2023
  • disclosed27 Mar 2023

Introduced: 27 Mar 2023

CVE-2023-1076  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-doc to version 0:5.14.0-362.8.1.el9_3 or higher.
This issue was patched in ELSA-2023-6583.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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.

CVSS Scores

version 3.1