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ubuntucveUbuntu.comUB:CVE-2022-20153
HistoryJun 15, 2022 - 12:00 a.m.

CVE-2022-20153

2022-06-1500:00:00
ubuntu.com
ubuntu.com
21
vulnerability
use-after-free
android kernel
privilege escalation
system execution
locking
exploitation

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

5.1%

In rcu_cblist_dequeue of rcu_segcblist.c, there is a possible
use-after-free due to improper locking. This could lead to local escalation
of privilege in the kernel with System execution privileges needed. User
interaction is not needed for exploitation.Product: AndroidVersions:
Android kernelAndroid ID: A-222091980References: Upstream kernel

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

5.1%