Executive Summary

Informations
Name CVE-2021-4002 First vendor Publication 2022-03-03
Vendor Cve Last vendor Modification 2023-02-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Overall CVSS Score 4.4
Base Score 4.4 Environmental Score 4.4
impact SubScore 2.5 Temporal Score 4.4
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact Low Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 3.6 Attack Range Local
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4002

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Application 1
Application 1
Application 1
Os 2
Os 1
Os 3450

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2022/dsa-5096
MISC https://bugzilla.redhat.com/show_bug.cgi?id=2025726
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://www.openwall.com/lists/oss-security/2021/11/25/1
MLIST https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
N/A https://www.oracle.com/security-alerts/cpujul2022.html

Alert History

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Date Informations
2024-03-12 13:19:40
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2024-02-02 02:28:38
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2024-02-01 12:24:47
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2023-12-29 02:19:15
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2023-11-22 02:18:39
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2023-09-29 13:13:18
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2023-09-05 13:23:00
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2023-09-05 01:24:17
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2023-09-02 13:21:23
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2023-09-02 01:24:39
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2023-08-12 13:27:27
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2023-08-12 01:23:53
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2023-08-11 13:19:42
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2023-08-11 01:24:40
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2023-08-06 13:17:39
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2023-08-06 01:23:36
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2023-08-04 13:18:02
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2023-08-04 01:23:58
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2023-07-14 13:18:05
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2023-06-06 13:10:03
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2023-05-17 13:03:36
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2023-03-29 02:20:10
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2023-03-28 12:23:58
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2023-03-25 02:07:53
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2023-02-22 21:27:29
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2023-01-25 02:08:05
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2023-01-20 02:07:35
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2022-10-11 13:09:36
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2022-10-11 01:23:24
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2022-09-09 02:07:37
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2022-07-26 00:29:38
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2022-06-24 02:01:47
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2022-03-31 01:57:43
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2022-03-10 21:22:58
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2022-03-04 17:22:55
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2022-03-04 00:22:54
  • First insertion