PT-2021-13433 · Google · Android

Published 2021-12-15 · Updated 2021-12-17 · CVE-2021-1028

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 prior to the fixed version

Description The issue is related to a possible out of bounds write due to a use after free in the setClientStateLocked function of SurfaceFlinger.cpp. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android versions prior to the fixed version, update to a version that includes the fix for this issue to prevent local escalation of privilege.

Fix

Memory Corruption

Use After Free

Weakness Enumeration

CWE-787

CWE-416

Related Identifiers

CVE-2021-1028

Affected Products

Android

References · 3

• https://osv.dev/vulnerability/CVE-2021-1028 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1028 · Security Note