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Red Hat OpenShift: CVE-2020-11565: kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c

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Red Hat OpenShift: CVE-2020-11565: kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
04/06/2020
Created
03/13/2021
Added
03/12/2021
Modified
03/12/2021

Description

** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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