What is CVE-2021-0436?

CVE-2021-0436 is a medium-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-04-13.

How severe is CVE-2021-0436?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Google Android

CVE-2021-0436

In CryptoPlugin::decrypt of CryptoPlugin.cpp, there is a possible out of bounds read due to integer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-176496160

Vulnerability class: Integer Overflow

EPSS: 0.001 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 8.1, 9.0, 10.0
N/a Android — versions Android-8.1 Android-9 Android-10 Android-11

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0436?: CVE-2021-0436 is a medium-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-04-13.
How severe is CVE-2021-0436?: Medium severity. CVSS v3 base score is 5.5 out of 10.