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Red Hat OpenShift: CVE-2020-10751: kernel: SELinux netlink permission check bypass

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Red Hat OpenShift: CVE-2020-10751: kernel: SELinux netlink permission check bypass

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
05/26/2020
Created
03/13/2021
Added
03/12/2021
Modified
03/12/2021

Description

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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