What is CVE-2021-3714?

CVE-2021-3714 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.9 out of 10, classified as a Information Exposure flaw (CWE-200). CVE-2021-3714 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-3714?

CVE-2021-3714 has a CVSS score of 5.9 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2021-3714?

No patch is currently available for CVE-2021-3714. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-3714 actively exploited?

CVE-2021-3714 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/200.html

CVE-2021-3714

Medium

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.

Package Linux Kernel

Published 2022-08-23

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.9

out of 10

Medium

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-200

CVE-2021-3714 is a Information Exposure vulnerability

What is Information Exposure?

The product exposes sensitive information to an actor not authorised to see it. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-3714 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2021-3714

Third Party Advisory
Arxiv
https://arxiv.org/abs/2111.08553

Third Party Advisory
Arxiv
https://arxiv.org/pdf/2111.08553.pdf

Technical Description Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1931327

Issue Tracking Third Party Advisory

Details

CVE ID CVE-2021-3714

Severity Medium

CVSS score 5.9 / 10

CVSS version 3.1

Published 2022-08-23

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-3714?

CVE-2021-3714 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.9 out of 10 , classified as an Information Exposure flaw (CWE-200) . CVE-2021-3714 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-3714?

CVE-2021-3714 has a CVSS score of 5.9 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2021-3714?

No patch is currently available for CVE-2021-3714. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-3714 actively exploited?

No — CVE-2021-3714 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Information Exposure (CWE-200)?

The product exposes sensitive information to an actor not authorised to see it. View CWE-200 on MITRE CWE →