Executive Summary

Informations
Name CVE-2020-8621 First vendor Publication 2020-08-21
Vendor Cve Last vendor Modification 2020-10-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None 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:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8621

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 678

Sources (Detail)

Source Url
CONFIRM https://kb.isc.org/docs/cve-2020-8621
https://security.netapp.com/advisory/ntap-20200827-0003/
https://www.synology.com/security/advisory/Synology_SA_20_19
GENTOO https://security.gentoo.org/glsa/202008-19
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
UBUNTU https://usn.ubuntu.com/4468-1/

Alert History

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Date Informations
2020-10-21 01:30:17
  • Multiple Updates
2020-10-21 01:29:47
  • Multiple Updates
2020-10-20 17:23:01
  • Multiple Updates
2020-10-20 09:23:01
  • Multiple Updates
2020-09-03 01:31:14
  • Multiple Updates
2020-09-02 17:23:19
  • First insertion