Buffer overflow in Huawei Emui

CVE-2020-9142

There is a heap base buffer overflow vulnerability in some Huawei smartphone.Successful exploitation of this vulnerability can cause heap overflow and memory overwriting when the system incorrectly processes the update file.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (49.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

  • Huawei Emui — versions 9.1.0, 9.1.1, 10.0.0
  • Huawei Magic_ui — versions 2.1.1, 3.0.0, 3.1.0
  • N/a Emui;magic Ui — 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-9142?
CVE-2020-9142 is a critical-severity vulnerability in Huawei Emui, classified under Out-of-bounds Write. CVSS score: 9.1/10. Published 2021-01-13.
How severe is CVE-2020-9142?
Critical severity. CVSS v3 base score is 9.1 out of 10.