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Red Hat OpenShift: CVE-2020-11884: Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation

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Red Hat OpenShift: CVE-2020-11884: Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
04/29/2020
Created
12/30/2020
Added
12/29/2020
Modified
05/10/2023

Description

In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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