What is CVE-2023-20956?

CVE-2023-20956 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2023-03-24.

How severe is CVE-2023-20956?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Buffer overflow in Google Android

CVE-2023-20956

In Import of C2SurfaceSyncObj.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12L Android-13Android ID: A-240140929

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 12.0, 12.1, 13.0
N/a Android — versions Android-12 Android-12L Android-13

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20956?: CVE-2023-20956 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2023-03-24.
How severe is CVE-2023-20956?: Medium severity. CVSS v3 base score is 4.4 out of 10.