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osvGoogleOSV:ASB-A-238177383
HistoryOct 01, 2022 - 12:00 a.m.

An android kernel bug that allows to bypass all protection bypass and achieve privilege escalation

2022-10-0100:00:00
Google
osv.dev
6
android
kernel bug
privilege escalation
io_uring.c
memory corruption
system execution privileges
local exploit

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

AI Score

8.8

Confidence

High

EPSS

0

Percentile

5.1%

In io_identity_cow of io_uring.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

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

AI Score

8.8

Confidence

High

EPSS

0

Percentile

5.1%