PT-2022-2177 · Google · Android

CVE-2021-39708 · Published 2022-03-01 · Updated 2023-08-08

Positive Technologies (AI Summary)

CVSS v3.1

10

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 Android versions Android-12

Description The issue is related to a function gatt process notification in gatt cl.cc of the Android operating system kernel, which is associated with inadequate access control. This could allow a remote attacker to escalate their privileges due to an incorrect bounds check, potentially leading to an out-of-bounds write. No additional execution privileges are needed, and user interaction is not required for exploitation.

Recommendations For Android version Android-12, consider restricting access to the gatt process notification function in gatt cl.cc until a patch is available. As a temporary workaround, disabling the gatt process notification function may help minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

CWE-264

Related Identifiers

ASB-A-206128341

BDU:2022-02188

CVE-2021-39708

Affected Products

Android

References · 9

• https://osv.dev/vulnerability/ASB-A-206128341 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39708 · Security Note
• https://source.android.com/security/bulletin/2022-03-01 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02188 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39708 · Vendor Advisory
• https://securitylab.ru/news/530498.php · Note
• https://t.me/cibsecurity/39077 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2022030801 · Note
• https://t.me/true_secator/2713 · Telegram Post