PT-2021-2480 · Google · Android Kernel

Published 2021-03-01 · Updated 2021-03-12 · CVE-2021-0455

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible out of bounds write in the Citadel chip firmware due to a missing bounds check. This could lead to local escalation of privilege, with System execution privileges needed. User interaction is not required for exploitation. The vulnerability is associated with a buffer overflow in memory, which can be exploited to elevate privileges.

Recommendations For Android kernel, apply the fix for the missing bounds check in the Citadel chip firmware to prevent out of bounds write. 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:2021-01851

CVE-2021-0455

Affected Products

Android Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-0455 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-03-01 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01851 · Security Note
• https://t.me/cvenotify/11215 · Telegram Post