Versio.io

CVE-2020-8621

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 21-08-2020 11:15
Last modified: - 28-04-2022 08:27
Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Low
Attack complexity
Network
Attack vector
High
Availability
None
Confidentiality
None
Integrity
None
Privileges required
Unchanged
Scope
None
User interaction
7.5
Base score
3.9
3.6
Exploitability score
Impact score
 

Verification logic

OR
OR
vendor=isc AND product=bind AND versionEndIncluding=9.16.5 AND versionStartIncluding=9.14.0
vendor=isc AND product=bind AND versionEndIncluding=9.17.3 AND versionStartIncluding=9.17.0
OR
vendor=opensuse AND product=leap AND version=15.1
vendor=opensuse AND product=leap AND version=15.2
OR
vendor=canonical AND product=ubuntu_linux AND version=16.04 AND software_edition=esm
vendor=canonical AND product=ubuntu_linux AND version=18.04 AND software_edition=lts
vendor=canonical AND product=ubuntu_linux AND version=20.04 AND software_edition=lts
OR
vendor=synology AND product=dns_server AND versionEndExcluding=2.2.2-5027
OR
vendor=netapp AND product=steelstore_cloud_integrated_storage AND version=-
 

Reference

 


Keywords

NVD

 

CVE-2020-8621

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

We use cookies to ensure that we give you the best experience on our website. Read privacy policies for more information.