CVE-2020-8621
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductIsc Bind
PublishedAug 21, 2020
First seenAug 21, 2020
How to fix
Update
- synology dns_server2.2.2-5027 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isc bind | 9.14.0 ≤ v ≤ 9.16.5, 9.17.0 ≤ v ≤ 9.17.3 | — |
| opensuse leap | 15.1, 15.2 | — |
| canonical ubuntu_linux | 16.04, 18.04, 20.04 | — |
| synology dns_server | v < 2.2.2-5027 | 2.2.2-5027 |
| netapp steelstore_cloud_integrated_storage | No range specified | — |
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