PT-2021-13432 · Google · Android

Published 2021-12-15 · Updated 2022-07-12 · CVE-2021-1027

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-12

Description The issue is related to improper casting in the setTransactionState of SurfaceFlinger, which could lead to arbitrary code execution in a privileged process. This may result in local escalation of privilege without requiring additional execution privileges. User interaction is not necessary for exploitation.

Recommendations For Android version Android-12, consider restricting access to the SurfaceFlinger component to minimize the risk of exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Type Conversion or Cast

Weakness Enumeration

CWE-704

Related Identifiers

CVE-2021-1027

Affected Products

Android

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-1027 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1027 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://t.me/cibsecurity/34106 · Telegram Post