PT-2023-12032 · Imagination Technologies · Powervr Kernel Driver

Published 2023-06-15 · Updated 2024-12-18 · CVE-2021-0945

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions PowerVR kernel driver (affected versions not specified)

Description The issue is related to a missing bounds check in the PMRCreate function of the PowerVR kernel driver. This allows for the overwrite of heap memory via PhysmemNewRamBackedPMR, potentially leading to local escalation of privilege without requiring additional execution privileges. User interaction is not necessary for exploitation.

Recommendations 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

CVE-2021-0945

Affected Products

Powervr Kernel Driver

References · 6

• https://source.android.com/security/bulletin/2023-06-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0945 · Security Note
• https://t.me/cvenotify/53466 · Telegram Post
• https://t.me/cvenotify/52426 · Telegram Post
• https://t.me/cvenotify/52892 · Telegram Post
• https://t.me/cvenotify/104784 · Telegram Post