CVE-2020-8621
published 2020-08-21CVE-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…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | bind9 | < bind9 1:9.16.6-1 (bookworm) | bind9 1:9.16.6-1 (bookworm) |
| isc | bind | 9.14.0 – 9.16.5 | — |
| isc | bind | 9.17.0 – 9.17.3 | — |
| isc | bind9 | >= 0 < 1:9.16.6-1 | 1:9.16.6-1 |
| isc | bind9 | >= 0 < 1:9.16.6-1 | 1:9.16.6-1 |
| isc | bind9 | >= 0 < 1:9.16.6-1 | 1:9.16.6-1 |
| isc | bind9 | >= 0 < 1:9.16.6-1 | 1:9.16.6-1 |
| isc | bind9 | >= 0 < 1:9.10.3.dfsg.P4-8ubuntu1.17 | 1:9.10.3.dfsg.P4-8ubuntu1.17 |
| isc | bind9 | >= 0 < 1:9.11.3+dfsg-1ubuntu1.13 | 1:9.11.3+dfsg-1ubuntu1.13 |
| isc | bind9 | >= 0 < 1:9.16.1-0ubuntu2.3 | 1:9.16.1-0ubuntu2.3 |
| isc | bind9 | >= 9.14.0 < * | * |
| msrc | cm1_bind_9.16.3-2_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| synology | dns_server | < 2.2.2-5027 | 2.2.2-5027 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH