CVE-2020-29369

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

CVSS v3.0 7.0 HIGH
CVSS v2.0 6.9 MEDIUM

7.0^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c	Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11	Release Notes Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056	Exploit Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210115-0001/	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/10/6	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/19/8	Mailing List Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:netapp:hci_management_node:-:::::::*
	cpe:2.3:a:netapp:solidfire:-:::::::*
	cpe:2.3:h:netapp:hci_compute_node:-:::::::*
	cpe:2.3:h:netapp:hci_storage_node:-:::::::*

Information

Published : 2020-11-27 23:15

Updated : 2021-02-24 12:37

NVD link : CVE-2020-29369

Mitre link : CVE-2020-29369

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Products Affected

netapp

hci_compute_node
solidfire
hci_management_node
hci_storage_node

linux

linux_kernel

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7.0 /10