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CVE-2020-11565

Published: April 6, 2020Last modified: November 8, 2023

Description

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.”

Severity score breakdown

ParameterValue
Base score6
Attack VectorLOCAL
Attack complexityLOW
Privileges requiredHIGH
User interactionNONE
ScopeUNCHANGED
ConfidentialityNONE
Integrity impactHIGH
Availability impactHIGH
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSlinux-ltsNot affected (6.1.50-r0)
Streamlinux-ltsNot affected (6.1.50-r0)

References

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