Executive Summary

Informations
Name CVE-2021-4157 First vendor Publication 2022-03-25
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8
Base Score 8 Environmental Score 8
impact SubScore 5.9 Temporal Score 8
Exploitabality Sub Score 2.1
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:M/Au:S/C:C/I:C/A:C)
Cvss Base Score 7.4 Attack Range Adjacent network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 4.4 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4157

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 3
Os 1
Os 3424

Sources (Detail)

https://lore.kernel.org/lkml/20210517140244.822185482%40linuxfoundation.org/
Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20220602-0007/
MISC https://bugzilla.redhat.com/show_bug.cgi?id=2034342
N/A https://www.oracle.com/security-alerts/cpujul2022.html

Alert History

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Date Informations
2024-03-12 13:20:07
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2024-02-02 02:29:06
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2024-02-01 12:24:57
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2024-01-12 02:21:42
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2023-12-29 02:19:41
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2023-11-22 02:19:05
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2023-11-07 21:32:38
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2023-09-29 13:13:45
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2023-09-05 13:23:28
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2023-09-05 01:24:27
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2023-09-02 13:21:55
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2023-09-02 01:24:50
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2023-08-12 13:27:56
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2023-08-12 01:24:03
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2023-08-11 13:20:10
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2023-08-11 01:24:51
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2023-08-06 13:18:06
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2023-08-06 01:23:47
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2023-08-04 13:18:28
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2023-08-04 01:24:08
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2023-07-14 13:18:32
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2023-07-14 01:23:56
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2023-06-06 13:10:28
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2023-04-13 02:08:26
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2023-03-29 02:20:35
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2023-03-28 12:24:08
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2023-03-25 02:08:16
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2023-01-25 00:27:34
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2023-01-19 17:27:30
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2023-01-18 00:27:44
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2022-10-19 21:27:50
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2022-10-11 13:09:59
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2022-10-11 01:23:33
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2022-09-09 02:07:58
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2022-07-26 00:29:37
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2022-06-03 00:27:23
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2022-04-07 21:23:04
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2022-03-25 21:23:05
  • First insertion