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.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-01-10T22:29:01.133
2024-11-21T03:37:20.507
Modified
CVSSv3.0: 6.5 (MEDIUM)
AV:A/AC:M/Au:N/C:N/I:N/A:P
5.5
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.2 | Yes |
| Operating System | juniper | junos | 16.2 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.