PT-2021-13103 · Google · Android

Published 2021-04-01 · Updated 2021-04-16 · CVE-2021-0426

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-11

Description: In the parsePrimaryFieldFirstUidAnnotation function of LogEvent.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations: For Android version Android-11, update to a version that includes the fix for the issue in LogEvent.cpp to prevent local escalation of privilege. As a temporary workaround, consider restricting access to sensitive areas of the system to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ASB-A-174485572

CVE-2021-0426

Affected Products

Android

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-0426 · Security Note
• https://source.android.com/security/bulletin/2021-04-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-174485572 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0426 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/base/+/19845bc16e53fe3436d61e5bc220deb45b507335 · Note
• https://t.me/cvenotify/13375 · Telegram Post