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Red Hat OpenShift: CVE-2019-14835: kernel: vhost-net: guest to host kernel escape during migration

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Red Hat OpenShift: CVE-2019-14835: kernel: vhost-net: guest to host kernel escape during migration

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
09/17/2019
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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