CVE-2020-29368

An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.

CVSS v3 7.0 HIGH
CVSS v2.0 6.9 MEDIUM

7.0^/10

CVSS v3 : 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://bugs.chromium.org/p/project-zero/issues/detail?id=2045	Exploit Issue Tracking Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040	Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20210108-0002/	Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045	Exploit Issue Tracking Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040	Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20210108-0002/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:netapp:cloud_backup:-:::::::*
	cpe:2.3:a:netapp:element_software:-:::::::*
	cpe:2.3:a:netapp:hci_management_node:-:::::::*
	cpe:2.3:a:netapp:solidfire:-:::::::*

Configuration 3 (hide)

AND

cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:23

Type	Values Removed	Values Added
References	~~() https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 - Exploit, Issue Tracking, Patch, Third Party Advisory~~	() https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 - Exploit, Issue Tracking, Patch, Third Party Advisory
References	~~() https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5 - Release Notes, Vendor Advisory~~	() https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5 - Release Notes, Vendor Advisory
References	~~() https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040 - Patch, Vendor Advisory~~	() https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040 - Patch, Vendor Advisory
References	~~() https://security.netapp.com/advisory/ntap-20210108-0002/ - Third Party Advisory~~	() https://security.netapp.com/advisory/ntap-20210108-0002/ - Third Party Advisory

26 Apr 2022, 16:34

Type	Values Removed	Values Added
CPE		cpe:2.3:a:netapp:cloud_backup:-:::::::* cpe:2.3:h:netapp:h410c:-:::::::* cpe:2.3:o:netapp:h410c_firmware:-:::::::* cpe:2.3:o:netapp:hci_bootstrap_os:-:::::::* cpe:2.3:a:netapp:hci_management_node:-:::::::* cpe:2.3:a:netapp:element_software:-:::::::* cpe:2.3:a:netapp:solidfire:-:::::::* cpe:2.3:h:netapp:hci_compute_node:-:::::::*
CWE	~~CWE-787~~	CWE-362
References	~~(CONFIRM) https://security.netapp.com/advisory/ntap-20210108-0002/ -~~	(CONFIRM) https://security.netapp.com/advisory/ntap-20210108-0002/ - Third Party Advisory

Information

Published : 2020-11-28 07:15

Updated : 2024-11-21 05:23

NVD link : CVE-2020-29368

Mitre link : CVE-2020-29368

CVE.ORG link : CVE-2020-29368

JSON object : View

Products Affected

netapp

cloud_backup
solidfire
h410c
hci_bootstrap_os
element_software
hci_compute_node
h410c_firmware
hci_management_node

linux

linux_kernel

CWE

CWE-362

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

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7.0 /10