Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or `NONE`) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record types in non-`IN` data — can cause assertion failures in `named`. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 9.11.0, <= 9.16.50CPE matchmatch criteria | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | ||
>= 9.18.0, < 9.18.49CPE matchmatch criteria | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | ||
>= 9.20.0, < 9.20.23CPE matchmatch criteria | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | ||
>= 9.21.0, < 9.21.22CPE matchmatch criteria | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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