Updates

These 5 issues impacted on EMUI 11, 10.1, 10, Magic UI 4 and 6 more versions got fixed with April 2021 security patch

EMUI patch issues fixed

Huawei has just released the April 2021 security patch details, which fixes many issues and bugs to provide better system security. The April 2021 security patch fixes common vulnerabilities and exposures (CVE) including 17 High levels and 69 Medium levels of CVE’s.

In the April 2021 security patch, Huawei has fixes some issues found on the 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.

This security update includes the following Huawei patches:

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.

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

Severity: Medium

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

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

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-2021-22336: 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-2021-22337: 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,EMUI 8.0,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.

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