CVE-2021-3714
Linux Kernel Memory Deduplication Local Attack
Description
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.
INFO
Published Date :
Aug. 23, 2022, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 6:22 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2021-3714 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3714.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3714 | Third Party Advisory |
| https://arxiv.org/abs/2111.08553 | Third Party Advisory |
| https://arxiv.org/pdf/2111.08553.pdf | Technical Description Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1931327 | Issue Tracking Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2021-3714 | Third Party Advisory |
| https://arxiv.org/abs/2111.08553 | Third Party Advisory |
| https://arxiv.org/pdf/2111.08553.pdf | Technical Description Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1931327 | Issue Tracking Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3714 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3714 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://access.redhat.com/security/cve/CVE-2021-3714 Added Reference https://arxiv.org/abs/2111.08553 Added Reference https://arxiv.org/pdf/2111.08553.pdf Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1931327 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Feb. 01, 2024
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N -
Initial Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-3714 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3714 Third Party Advisory Changed Reference Type https://arxiv.org/abs/2111.08553 No Types Assigned https://arxiv.org/abs/2111.08553 Third Party Advisory Changed Reference Type https://arxiv.org/pdf/2111.08553.pdf No Types Assigned https://arxiv.org/pdf/2111.08553.pdf Technical Description, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1931327 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1931327 Issue Tracking, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3714 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3714
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} -0.00%
score
0.39683
percentile