Executive Summary

Informations
Name CVE-2021-20177 First vendor Publication 2021-05-26
Vendor Cve Last vendor Modification 2021-06-02

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.4
Base Score 4.4 Environmental Score 4.4
impact SubScore 3.6 Temporal Score 4.4
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20177

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3352

Sources (Detail)

Source Url
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1914719

Alert History

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Date Informations
2021-06-03 00:22:50
  • Multiple Updates
2021-06-02 01:39:22
  • Multiple Updates
2021-06-02 01:38:17
  • Multiple Updates
2021-06-01 17:22:49
  • Multiple Updates
2021-05-27 00:22:46
  • First insertion