PT-2021-13349 · Google · Android

Published 2021-11-01 · Updated 2021-12-17 · CVE-2021-0918

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

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

Description The issue is related to a missing bounds check in the gatt process notification function of gatt cl.cc, which could lead to a possible out of bounds write. This might result in remote code execution over Bluetooth with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android version Android-12, consider restricting Bluetooth connectivity until a patch is available to prevent potential remote code execution. As a temporary workaround, disabling Bluetooth when not in use may minimize the risk of exploitation. 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

ASB-A-197536150

CVE-2021-0918

Affected Products

Android

References · 8

• https://source.android.com/security/bulletin/2021-11-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-197536150 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0918 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0918 · Vendor Advisory
• https://t.me/nekaspersky/1415 · Telegram Post
• https://t.me/cibsecurity/34100 · Telegram Post
• https://t.me/true_secator/2282 · Telegram Post
• https://android.googlesource.com/platform/system/bt/+/4650d4d536be3978fdc436cee3833d443dff9dc7 · Note