| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| bind | ≥ 9.18.0, ≤ 9.18.50≥ 9.18.11, ≤ 9.18.50≥ 9.20.0, ≤ 9.20.24≥ 9.20.9, ≤ 9.20.24 |
The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A query but delays the DNAME response and later responds negatively, `named` may quit unexpectedly. Or, if a client queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds positively to the A query but delays the CNAME response and later responds with a self-referential CNAME, the same failure may occur. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
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