PT-2021-13319 · Google · Android

Published 2021-09-01 · Updated 2021-10-08 · CVE-2021-0688

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-8.1 through Android-11

Description In the lockNow function of PhoneWindowManager.java, there is a possible lock screen bypass 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-8.1 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-161149543

CVE-2021-0688

Affected Products

Android

References · 7

• https://osv.dev/vulnerability/ASB-A-161149543 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0688 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0688 · Vendor Advisory
• https://source.android.com/security/bulletin/2021-09-01 · Vendor Advisory
• https://t.me/cibsecurity/30053 · Telegram Post
• https://t.me/cvenotify/22144 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/372088d7721f4c8cb7260d8e9fdaf498c5a30464 · Note