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WS-2021-0522

Good to know:

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Date: December 1, 2021

In Linux/Kernel is vulnerable to use-after-free due to missing POLLFREE handling in fs/aio.c

Language: C

Severity Score

Related Resources (2)

https://github.com/gregkh/linux/commit/60d311f9e6381d779d7d53371f87285698ecee24
https://www.mend.io/vulnerability-database/WS-2021-0522

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version Linux/Kernel - v4.19.221, v5.4.165, v5.10.85, v5.15.8, v5.16-rc5

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CVSS v3.1

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

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