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MitreCVE-2021-42252

HistoryOct 11, 2021 - 7:15 p.m.

CVE-2021-42252

2021-10-1119:15:07

mitre

web.nvd.nist.gov

193

cve-2021-42252

linux kernel

security vulnerability

aspeed_lpc_ctrl_mmap

local attackers

kernel memory overwrite

privilege execution

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.2

Confidence

High

EPSS

Percentile

5.1%

JSON

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

Affected configurations

Nvd

Node

linuxlinux_kernelRange<5.14.6

Node

netapph300sMatch-

AND

netapph300s_firmwareMatch-

Node

netapph500sMatch-

AND

netapph500s_firmwareMatch-

Node

netapph700sMatch-

AND

netapph700s_firmwareMatch-

Node

netapph300eMatch-

AND

netapph300e_firmwareMatch-

Node

netapph500eMatch-

AND

netapph500e_firmwareMatch-

Node

netapph700eMatch-

AND

netapph700e_firmwareMatch-

Node

netapph410sMatch-

AND

netapph410s_firmwareMatch-

Node

netapph410cMatch-

AND

netapph410c_firmwareMatch-

Node

netappsolidfire_baseboard_management_controller_firmwareMatch-

AND

netappsolidfire_baseboard_management_controllerMatch-

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapph300s-cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
netapph300s_firmware-cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
netapph500s-cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
netapph500s_firmware-cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
netapph700s-cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
netapph700s_firmware-cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
netapph300e-cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
netapph300e_firmware-cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
netapph500e-cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
netapp	h300s	-	cpe:2.3:h:netapp:h300s:-:::::::*
netapp	h300s_firmware	-	cpe:2.3:o:netapp:h300s_firmware:-:::::::*
netapp	h500s	-	cpe:2.3:h:netapp:h500s:-:::::::*
netapp	h500s_firmware	-	cpe:2.3:o:netapp:h500s_firmware:-:::::::*
netapp	h700s	-	cpe:2.3:h:netapp:h700s:-:::::::*
netapp	h700s_firmware	-	cpe:2.3:o:netapp:h700s_firmware:-:::::::*
netapp	h300e	-	cpe:2.3:h:netapp:h300e:-:::::::*
netapp	h300e_firmware	-	cpe:2.3:o:netapp:h300e_firmware:-:::::::*
netapp	h500e	-	cpe:2.3:h:netapp:h500e:-:::::::*