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CVE-2023-20938

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Date: February 27, 2023

In binder_transaction_buffer_release of binder.c, there is a possible use after free due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-257685302References: Upstream kernel

Language: C++

Severity Score

Related Resources (7)

https://source.android.com/docs/security/bulletin/2023-02-01
https://people.canonical.com/~ubuntu-security/cve/CVE-2023-20938
https://android.googlesource.com/kernel/common/+/baa23246e93f
https://security-tracker.debian.org/tracker/CVE-2023-20938
https://nvd.nist.gov/vuln/detail/CVE-2023-20938
https://source.android.com/security/bulletin/2023-02-01
https://www.mend.io/vulnerability-database/CVE-2023-20938

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

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

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