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CentOS Linux: CVE-2023-1076: Important: kernel security, bug fix, and enhancement update (CESA-2023:6583)

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CentOS Linux: CVE-2023-1076: Important: kernel security, bug fix, and enhancement update (CESA-2023:6583)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:N)
Published
03/27/2023
Created
11/09/2023
Added
11/08/2023
Modified
01/28/2025

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.

Solution(s)

  • centos-upgrade-kernel

References

  • CVE-2023-1076
  • 查看数 696
  • 已创建
  • 最后回复

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