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Red Hat OpenShift: CVE-2019-13648: kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call

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Red Hat OpenShift: CVE-2019-13648: kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
07/19/2019
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

In the Linux kernel through 5.2.1 on the powerpc platform, when hardware transactional memory is disabled, a local user can cause a denial of service (TM Bad Thing exception and system crash) via a sigreturn() system call that sends a crafted signal frame. This affects arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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