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WS-2021-0517

Good to know:

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Date: December 1, 2021

In Linux/Kernel is vulnerable to user buffer by properly using clear_user() in fs/proc/vmcore.c. The fix versions are v4.4.294, v4.9.292, v4.14.258, v4.19.219, v5.4.163, v5.10.83, v5.15.6, v5.16-rc3.

Language: C

Severity Score

Related Resources (2)

https://github.com/gregkh/linux/commit/7b3a34f08d11e7f05cd00b8e09adaa15192f0ad1
https://www.mend.io/vulnerability-database/WS-2021-0517

Severity Score

Weakness Type (CWE)

Stack-based Buffer Overflow

CWE-121

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-libc-headers - 5.14

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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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