PT-2021-13427 · Google · Android

Published 2021-12-15 · Updated 2021-12-17 · CVE-2021-1022

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Android versions prior to Android-12

Description The issue is related to a missing null check in the btif in hf client generic evt function of btif hf client.cc, which could cause a Bluetooth service crash. This could lead to a remote denial of service, and no additional execution privileges are needed for exploitation. User interaction is not required for exploitation.

Recommendations For Android versions prior to Android-12, update to Android-12 or a later version to resolve the issue. As a temporary workaround, consider restricting Bluetooth service usage to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-1022

Affected Products

Android

References · 3

• https://osv.dev/vulnerability/CVE-2021-1022 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1022 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory