PT-2021-13168 · Google · Android

Published 2021-06-01 · Updated 2021-06-23 · CVE-2021-0520

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-10 through Android-11

Description: The issue is related to a possible use after free due to a race condition in several functions of MemoryFileSystem.cpp and related files. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations: For Android versions Android-10 through Android-11, update to a version that contains a fix for this issue. 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-176237595

CVE-2021-0520

Affected Products

Android

References · 7

• https://source.android.com/security/bulletin/2021-06-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-176237595 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0520 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0520 · Vendor Advisory
• https://t.me/cibsecurity/25580 · Telegram Post
• https://t.me/cvenotify/16603 · Telegram Post
• https://android.googlesource.com/platform/frameworks/av/+/3b1141d44f448ea9a528ff8af8f128686c35039d · Note