| Summary | A high rate of VLAN authentication attempts sent from an adjacent host on the local broadcast domain can trigger high memory utilization by the BBE subscriber management daemon (bbe-smgd), and lead to a denial of service condition. The issue was caused by attempting to process an unbounded number of pending VLAN authentication requests, leading to excessive memory allocation. This issue only affects devices configured for DHCPv4/v6 over AE auto-sensed VLANs, utilized in Broadband Edge (BBE) deployments. Other configurations are unaffected by this issue. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R6-S2, 15.1R7; 16.1 versions prior to 16.1R5-S1, 16.1R6; 16.2 versions prior to 16.2R2-S2, 16.2R3; 17.1 versions prior to 17.1R2-S5, 17.1R3; 17.2 versions prior to 17.2R2. |
|---|---|
| Publication Date | Jan. 11, 2018, 7:29 a.m. |
| Registration Date | March 1, 2021, 6:35 p.m. |
| Last Update | Nov. 21, 2024, 12:37 p.m. |
| CVSS3.0 : MEDIUM | |
| スコア | 5.3 |
|---|---|
| Vector | CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 攻撃元区分(AV) | 隣接 |
| 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 : LOW | |
| Score | 2.9 |
|---|---|
| Vector | AV:A/AC:M/Au:N/C:N/I:N/A:P |
| 攻撃元区分(AV) | 隣接 |
| 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:juniper:junos:15.1:r7:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:* | |||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:juniper:junos:16.2:r3:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:juniper:junos:17.1:r3:*:*:*:*:*:* | |||||
| cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:* | |||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:* | |||||
| Title | Juniper Networks Junos OS におけるリソース管理に関する脆弱性 |
|---|---|
| Summary | Juniper Networks Junos OS には、リソース管理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 | Jan. 10, 2018, midnight |
| Registration Date | March 5, 2018, 12:09 p.m. |
| Last Update | March 5, 2018, 12:09 p.m. |
| ジュニパーネットワークス |
| Junos OS 15.1R6-S2 未満の 15.1 |
| Junos OS 15.1R7 |
| Junos OS 16.1R5-S1 未満の 16.1 |
| Junos OS 16.1R6 |
| Junos OS 16.2R2-S2 未満の 16.2 |
| Junos OS 16.2R3 |
| Junos OS 17.1R2-S5 未満の 17.1 |
| Junos OS 17.1R3 |
| Junos OS 17.2R2 未満の 17.2 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2018年03月05日] 掲載 |
March 5, 2018, 12:09 p.m. |