| Summary | A vulnerability has been found in the implementation of the Label Distribution Protocol (LDP) protocol in EOS. Under race conditions, the LDP agent can establish an LDP session with a malicious peer potentially allowing the possibility of a Denial of Service (DoS) attack on route updates and in turn potentially leading to an Out of Memory (OOM) condition that is disruptive to traffic forwarding. Affected EOS versions include: 4.22 release train: 4.22.1F and earlier releases 4.21 release train: 4.21.0F - 4.21.2.3F, 4.21.3F - 4.21.7.1M 4.20 release train: 4.20.14M and earlier releases 4.19 release train: 4.19.12M and earlier releases End of support release trains (4.18 and 4.17) |
|---|---|
| Publication Date | Oct. 11, 2019, 4:15 a.m. |
| Registration Date | Jan. 26, 2021, 11:39 a.m. |
| Last Update | Nov. 21, 2024, 1:27 p.m. |
| CVSS3.1 : MEDIUM | |
| スコア | 5.9 |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/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) | 高 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 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 | 4.3 |
|---|---|
| Vector | AV:N/AC:M/Au:N/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) | 中 |
| 攻撃前の認証要否(Au) | 不要 |
| 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:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* | 4.19 | 4.19.12m | |||
| cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* | 4.20 | 4.20.14m | |||
| cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* | 4.21.0f | 4.21.2.3f | |||
| cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* | 4.21.3f | 4.21.7 | |||
| cpe:2.3:o:arista:extensible_operating_system:4.17:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:arista:extensible_operating_system:4.18:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:arista:extensible_operating_system:4.22.1f:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:arista:7020r:-:*:*:*:*:*:*:* | ||||
| 2 | cpe:2.3:h:arista:7280e:-:*:*:*:*:*:*:* | ||||
| 3 | cpe:2.3:h:arista:7280r:-:*:*:*:*:*:*:* | ||||
| 4 | cpe:2.3:h:arista:7280r2:-:*:*:*:*:*:*:* | ||||
| 5 | cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:* | ||||
| 6 | cpe:2.3:h:arista:7500e:-:*:*:*:*:*:*:* | ||||
| 7 | cpe:2.3:h:arista:7500r:-:*:*:*:*:*:*:* | ||||
| 8 | cpe:2.3:h:arista:7500r2:-:*:*:*:*:*:*:* | ||||
| 9 | cpe:2.3:h:arista:7500r3:-:*:*:*:*:*:*:* | ||||
| Title | EOS における競合状態に関する脆弱性 |
|---|---|
| Summary | EOS には、競合状態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 | Oct. 9, 2019, midnight |
| Registration Date | Oct. 29, 2019, 5:42 p.m. |
| Last Update | Oct. 29, 2019, 5:42 p.m. |
| Arista Networks, Inc. |
| Arista EOS |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2019年10月29日] 掲載 |
Oct. 29, 2019, 5:42 p.m. |