PT-2021-13138 · Google · Android

Published 2021-10-01 · Updated 2021-10-26 · CVE-2021-0483

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Android versions Android-10 through Android-11

Description: In multiple methods of AAudioService, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.

Recommendations: For Android versions Android-10 through Android-11, consider restricting access to the AAudioService until a patch is available. As a temporary workaround, consider disabling the affected methods of AAudioService to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

ASB-A-153358911

CVE-2021-0483

Affected Products

Android

References · 7

• https://source.android.com/security/bulletin/2021-10-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-153358911 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0483 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0483 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/av/+/cc2165840d524bb9553f9d73d1904633d20100a2 · Note
• https://t.me/cibsecurity/31046 · Telegram Post
• https://android.googlesource.com/platform/frameworks/av/+/084077feb6b8c961adcbe77b2bd76601ca54e534 · Note