PT-2020-11781 · Google · Android

Published 2020-11-01 · Updated 2021-07-21 · CVE-2020-0438

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android versions Android-10 through Android-11

Description The issue is related to a possible arbitrary code execution due to uninitialized data in the AIBinder Class constructor of ibinder.cpp. This could lead to local escalation of privilege if a process were using libbinder ndk in a vulnerable way with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android versions Android-10 through Android-11, update to a version that includes the fix for the issue in the AIBinder Class constructor of ibinder.cpp. As a temporary workaround, consider restricting the use of libbinder ndk to minimize the risk of exploitation.

Fix

Access of Uninitialized Pointer

Weakness Enumeration

CWE-909

CWE-824

Related Identifiers

ASB-A-161812320

CVE-2020-0438

Affected Products

Android

References · 7

• https://source.android.com/security/bulletin/2020-11-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-0438 · Security Note
• https://osv.dev/vulnerability/ASB-A-161812320 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-0438 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/native/+/10b19f86d9d8bec6f47f31449593711479f336a5 · Note
• https://t.me/cvenotify/5433 · Telegram Post
• https://t.me/cibsecurity/16076 · Telegram Post