PT-2021-13133 · Google · Android

Published 2021-05-01 · Updated 2021-06-15 · CVE-2021-0476

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Android versions Android-9 through Android-11

Description: The issue is related to a possible use after free due to a race condition in the FindOrCreatePeer function of btif av.cc. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations: For Android versions Android-9 through Android-11, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ASB-A-169252501

CVE-2021-0476

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/ASB-A-169252501 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0476 · Vendor Advisory
• https://source.android.com/security/bulletin/2021-05-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0476 · Security Note
• https://android.googlesource.com/platform/system/bt/+/a2b86770143b3e6ec07a6f26edbdc2f8280f0463 · Note