CVE-2020-8621

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-8621
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html Mailing List Third Party Advisory
https://kb.isc.org/docs/cve-2020-8621 Vendor Advisory
https://security.gentoo.org/glsa/202008-19 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200827-0003/ Third Party Advisory
https://usn.ubuntu.com/4468-1/ Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_19 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html Mailing List Third Party Advisory
https://kb.isc.org/docs/cve-2020-8621 Vendor Advisory
https://security.gentoo.org/glsa/202008-19 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200827-0003/ Third Party Advisory
https://usn.ubuntu.com/4468-1/ Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_19 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

Configuration 4 (hide)

cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:*

Configuration 5 (hide)

cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
History

21 Nov 2024, 05:39

Type Values Removed Values Added
References () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html - Mailing List, Third Party Advisory
References () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html - Mailing List, Third Party Advisory
References () https://kb.isc.org/docs/cve-2020-8621 - Vendor Advisory () https://kb.isc.org/docs/cve-2020-8621 - Vendor Advisory
References () https://security.gentoo.org/glsa/202008-19 - Third Party Advisory () https://security.gentoo.org/glsa/202008-19 - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20200827-0003/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20200827-0003/ - Third Party Advisory
References () https://usn.ubuntu.com/4468-1/ - Third Party Advisory () https://usn.ubuntu.com/4468-1/ - Third Party Advisory
References () https://www.synology.com/security/advisory/Synology_SA_20_19 - Third Party Advisory () https://www.synology.com/security/advisory/Synology_SA_20_19 - Third Party Advisory

28 Apr 2022, 18:27

Type Values Removed Values Added
CWE CWE-20 CWE-617
References (UBUNTU) https://usn.ubuntu.com/4468-1/ - (UBUNTU) https://usn.ubuntu.com/4468-1/ - Third Party Advisory
References (CONFIRM) https://security.netapp.com/advisory/ntap-20200827-0003/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20200827-0003/ - Third Party Advisory
References (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html - (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html - Mailing List, Third Party Advisory
References (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html - (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html - Mailing List, Third Party Advisory
References (CONFIRM) https://www.synology.com/security/advisory/Synology_SA_20_19 - (CONFIRM) https://www.synology.com/security/advisory/Synology_SA_20_19 - Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202008-19 - (GENTOO) https://security.gentoo.org/glsa/202008-19 - Third Party Advisory
CPE cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
Information

Published : 2020-08-21 21:15

Updated : 2024-11-21 05:39

NVD link : CVE-2020-8621

Mitre link : CVE-2020-8621

CVE.ORG link : CVE-2020-8621

JSON object : View

Products Affected

isc

  • bind

netapp

  • steelstore_cloud_integrated_storage

opensuse

  • leap

synology

  • dns_server

canonical

  • ubuntu_linux
CWE
CWE-617

Reachable Assertion