google android CVE-2021-25370 is a vulnerability in Google Android
Published on March 26, 2021

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Samsung Mobile Devices Memory Corruption Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Samsung mobile devices using Mali GPU contain an incorrect implementation handling file descriptor in dpu driver. This incorrect implementation results in memory corruption, leading to kernel panic. This vulnerability was chained with CVE-2021-25337 and CVE-2021-25369.

The following remediation steps are recommended / required by November 29, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-25370 is exploitable with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 0.8 out of four. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

What is a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2021-25370 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2021-25370

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Google Android
 

What versions of Android are vulnerable to CVE-2021-25370?