PT-2021-2481 · Google · Titan M+1

Published 2021-03-01 · Updated 2021-03-15 · CVE-2021-0456

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions: Android kernel

Description: The issue is related to a possible out of bounds write due to a missing bounds check in the Citadel chip firmware. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. The vulnerability is also described as a buffer overflow in the Titan M security module of the Android operating system, which can allow an attacker to elevate their privileges.

Recommendations: For Android kernel, consider applying a patch or fix that addresses the missing bounds check in the Citadel chip firmware to prevent out of bounds write and potential privilege escalation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-01852

CVE-2021-0456

Affected Products

Android Kernel

Titan M

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2021-0456 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-03-01 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01852 · Security Note