CVE-2022-20422

2022-10-1100:00:00

ubuntu.com

memory corruption

race condition

armv8_deprecated.c

privilege escalation

android kernel

upstream kernel

unix

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

In emulation_proc_handler of armv8_deprecated.c, there is a possible way to
corrupt memory due to a race condition. This could lead to local escalation
of privilege with no additional execution privileges needed. User
interaction is not needed for exploitation.Product: AndroidVersions:
Android kernelAndroid ID: A-237540956References: Upstream kernel

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-197.208UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-132.148UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-53.59UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-253.287UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1143.155UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1089.97UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1023.27UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1130.136UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1168.183UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1023.27~20.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-197.208	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-132.148	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-53.59	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-253.287	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1143.155	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1089.97	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1023.27	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1130.136	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1168.183	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1023.27~20.04.1	UNKNOWN