CVE-2020-8619

medium

Description

In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable.

References

https://kb.isc.org/docs/cve-2020-8619

https://lists.fedoraproject.org/archives/list/[email protected]/message/CNFTTYJ5JJJJ6QG3AHXJGDIIEYMDFWFW/

https://security.netapp.com/advisory/ntap-20200625-0003/

https://lists.fedoraproject.org/archives/list/[email protected]/message/EIOXMJX4N3LBKC65OXNBE52W4GAS7QEX/

https://usn.ubuntu.com/4399-1/

https://www.debian.org/security/2020/dsa-4752

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html

Details

Source: MITRE

Published: 2020-06-17

Updated: 2022-10-07

Type: CWE-404

Risk Information

CVSS v2

Base Score: 4

Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3

Base Score: 4.9

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.2

Severity: MEDIUM