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GoogleOSV:ASB-A-209791720

HistoryApr 01, 2022 - 12:00 a.m.

race condition between ION_IOC_ALLOC and ION_IOC_FREE could lead to UAF in [upstream-linux-4.9.y] branch

2022-04-0100:00:00

Google

osv.dev

7.8 High

CVSS3

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

7.2 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CPENameOperatorVersion
:linux_kernel:eqKernel

CPE	Name	Operator	Version
	:linux_kernel:	eq	Kernel

References

android.googlesource.com/kernel/common/+/504e1d6ee65d5

android.googlesource.com/kernel/common/+/a8200613c8c9f

android.googlesource.com/kernel/common/+/c47385c73fced

source.android.com/security/bulletin/2022-04-01

7.8 High

CVSS3

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

7.2 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

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