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CVE-2021-3714

Date: August 23, 2022

A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged.

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2021-3714
https://bugzilla.redhat.com/show_bug.cgi?id=1931327
https://security-tracker.debian.org/tracker/CVE-2021-3714
https://access.redhat.com/security/cve/CVE-2021-3714
https://arxiv.org/pdf/2111.08553.pdf
https://arxiv.org/abs/2111.08553
https://www.mend.io/vulnerability-database/CVE-2021-3714

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

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

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