PT-2021-13187 · Google · Android

Published 2021-06-22 · Updated 2021-06-25 · CVE-2021-0540

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Android versions Android-11

Description: In the halWrapperDataCallback function of hal wrapper.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Recommendations: For Android version Android-11, consider applying a patch to fix the missing bounds check in the halWrapperDataCallback function as a permanent solution. As a temporary workaround, restrict access to the halWrapperDataCallback function to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-0540

Affected Products

Android

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-0540 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0540 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2021-06-01 · Vendor Advisory
• https://t.me/cvenotify/16647 · Telegram Post