CVE-2021-22337: April

Huawei is releasing monthly security updates for flagship models. This security update includes Android and Huawei patches:

This security update includes the CVE announced in the April 2021 Android security bulletin.

Critical:CVE-2019-9465, CVE-2021-0430

High:CVE-2019-9345,CVE-2020-0261,CVE-2021-0437,CVE-2021-0400,CVE-2021-0429,CVE-2021-0436,CVE-2021-0438, CVE-2021-0444,CVE-2021-0471,CVE-2020-11308,CVE-2020-11290,CVE-2020-11309,CVE-2021-0399, CVE-2021-0432

Medium:CVE-2020-0479,CVE-2020-0480,CVE-2020-0485,CVE-2020-27052,CVE-2020-0482, CVE-2020-0483,CVE-2020-0492,CVE-2020-27035,CVE-2020-0491,CVE-2020-27038,CVE-2020-0202,CVE-2020-27030,CVE-2020-27036,CVE-2020-27044,CVE-2020-27045,CVE-2020-27048,CVE-2020-27049,CVE-2020-27050,CVE-2020-27051, CVE-2020-0280,CVE-2020-0476,CVE-2020-27021,CVE-2020-27024,CVE-2020-27027, CVE-2020-27031,CVE-2020-27032,CVE-2020-27033,CVE-2020-27034,CVE-2020-27037,CVE-2020-27039,CVE-2020-27040,CVE-2020-27047,CVE-2020-27055,CVE-2020-27056,CVE-2020-27029,CVE-2019-9458,CVE-2019-9455,CVE-2020-0369,CVE-2020-0322,CVE-2020-0323,CVE-2020-0336,CVE-2020-0356,CVE-2020-0357,CVE-2020-0358,CVE-2020-0406,CVE-2020-0270,CVE-2020-0324,CVE-2020-0355,CVE-2020-0364,CVE-2020-0302,CVE-2020-0307,CVE-2020-0349,CVE-2020-0365,CVE-2020-0197,CVE-2021-0371,CVE-2021-0377,CVE-2020-25211,CVE-2020-0497,CVE-2020-0481,CVE-2019-9445,CVE-2020-0310,CVE-2020-0348,CVE-2020-0223,CVE-2020-0235

Low: none

Already included in previous updates:CVE-2020-0201,CVE-2019-16275,CVE-2019-5489,CVE-2020-0486,CVE-2020-0494,CVE-2019-9447,CVE-2019-9450,CVE-2020-0296,CVE-2020-0297,CVE-2020-0343,CVE-2020-0279,CVE-2020-0314,CVE-2020-0351,CVE-2020-0353,CVE-2020-0362,CVE-2020-0271,CVE-2020-0269,CVE-2020-0327,CVE-2021-0382,CVE-2020-0025,CVE-2021-0378,CVE-2021-0379,CVE-2021-0380,CVE-2021-0381,CVE-2021-0383,CVE-2021-0385,CVE-2021-0386,CVE-2021-0387,CVE-2021-0388,CVE-2021-0374,CVE-2021-0384

※For more information on security patches, please refer to the Android security bulletins (https://source.android.com/security/bulletin).

This security update includes the following Huawei patches:

CVE-2021-22337: Information leak vulnerability in some Huawei phones

Severity: Medium

Affected versions: EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, EMUI 9.1.1, EMUI 9.1.0, Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0, Magic UI 2.1.1

Impact: Successful exploitation of this vulnerability may cause leaking of user click data.

CVE-2021-22336: DoS vulnerability in some Huawei phones

Severity: Medium

Affected versions: EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0

Impact: Successful exploitation of this vulnerability may cause denial of security services on a rooted device.

CVE-2021-22335: Heap overflow vulnerability in some Huawei phones

Severity: Medium

Affected versions: EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, EMUI 9.1.1, EMUI 9.1.0, Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0, Magic UI 2.1.1

Impact: Successful exploitation of this vulnerability may cause exceptions in image processing.

CVE-2021-22334: Malicious Wi-Fi construction vulnerability in some Huawei phones

Severity: Medium

Affected versions: EMUI 11.0.0, EMUI 10.1.1, Magic UI 4.0.0, Magic UI 3.1.1

Impact: Successful exploitation of this vulnerability may cause app redirections.

CVE-2021-22333: Integer overflow vulnerability in some Huawei phones

Severity: High

Affected versions: EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, EMUI 9.1.1, EMUI 9.1.0, Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0, Magic UI 2.1.1

Impact: Successful exploitation of this vulnerability may cause code to execute, thus obtaining system permissions.