PT-2023-12022 · Google · Android

Published 2023-04-19 · Updated 2023-04-27 · CVE-2021-0876

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 A missing size check in the PowerVR kernel driver's PVRSRVBridgePhysmemNewRamBackedLockedPMR function could lead to an integer overflow, allowing out-of-bounds heap access. This issue could result in local escalation of privilege without requiring additional execution privileges. User interaction is not necessary for exploitation.

Recommendations For Android versions prior to the fixed version, consider applying the patch provided by the Android security team to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2021-0876

Affected Products

Android

References · 3

• https://source.android.com/security/bulletin/2023-04-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0876 · Security Note
• https://t.me/cvenotify/49154 · Telegram Post