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CVE-2020-0421

Good to know:

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Date: October 14, 2020

In appendFormatV of String8.cpp, there is a possible out of bounds write due to incorrect error handling. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11 Android-8.0Android ID: A-161894517

Language: C++

Severity Score

Related Resources (3)

https://nvd.nist.gov/vuln/detail/CVE-2020-0421
https://source.android.com/security/bulletin/2020-10-01
https://www.mend.io/vulnerability-database/CVE-2020-0421

Severity Score

Weakness Type (CWE)

Improper Handling of Exceptional Conditions

CWE-755

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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