| Summary | 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. |
|---|---|
| Publication Date | June 18, 2020, 7:15 a.m. |
| Registration Date | Jan. 26, 2021, 12:02 p.m. |
| Last Update | Nov. 21, 2024, 2:39 p.m. |
| CVSS3.1 : MEDIUM | |
| スコア | 4.9 |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 高 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | 高 |
| CVSS2.0 : MEDIUM | |
| Score | 4.0 |
|---|---|
| Vector | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 単一 |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | 9.16.0 | 9.16.3 | |||
| cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | 9.14.9 | 9.14.12 | |||
| cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | 9.11.14 | 9.11.19 | |||
| cpe:2.3:a:isc:bind:*:*:*:*:preview:*:*:* | 9.11.14-s1 | 9.11.19-s1 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | |||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* | |||||
| Configuration6 | or higher | or less | more than | less than | |
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | |||||
| Title | ISC BIND におけるリソースの不適切なシャットダウンおよびリリースに関する脆弱性 |
|---|---|
| Summary | ISC BIND には、リソースの不適切なシャットダウンおよびリリースに関する脆弱性が存在します。 |
| Possible impacts | サービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | June 17, 2020, midnight |
| Registration Date | July 22, 2020, 4:25 p.m. |
| Last Update | July 22, 2020, 4:25 p.m. |
| ISC, Inc. |
| BIND |
| Fedora Project |
| Fedora |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2020年07月22日] 掲載 |
July 22, 2020, 4:25 p.m. |