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TI-2018-00006 Aliases CVE-2018-0006GHSA-f33j-xhh7-r2cj

Junos OS: bbe-smgd process denial of service while processing VLAN authentication requests/rejects

Priority LOW 30CWE-770Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-770.

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.

Why it matters now

EPSS 0.00668 52nd percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 15.1R6-S2, 15.1R7, 16.1R5-S1 +6

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS15.1 to before 15.1R6-S2, 15.1R7; 16.1 to before 16.1R5-S1, 16.1R6; 16.2 to before 16.2R2-S2, 16.2R3; 17.1 to before 17.1R2-S5, 17.1R3; 17.2 to before 17.2R215.1R6-S2, 15.1R7, 16.1R5-S1, 16.1R6, 16.2R2-S2, 16.2R3, 17.1R2-S5, 17.1R3, 17.2R2Patch availableCNA
  • Junos OS VendorJuniper Affected 15.1 to before 15.1R6-S2, 15.1R7; 16.1 to before 16.1R5-S1, 16.1R6; 16.2 to before 16.2R2-S2, 16.2R3; 17.1 to before 17.1R2-S5, 17.1R3; 17.2 to before 17.2R2 Fixed in 15.1R6-S2, 15.1R7, 16.1R5-S1, 16.1R6, 16.2R2-S2, 16.2R3, 17.1R2-S5, 17.1R3, 17.2R2 Patch available CNA

CPE configurations NVD · 18

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:*15.1VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:*15.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:*15.1 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:*15.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*15.1 r4VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*15.1 r5VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r7:*:*:*:*:*:*15.1 r7VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:*16.1VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*16.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*16.1 r2VulnerableJuniper
  • cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* Versions 15.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* Versions 15.1 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* Versions 15.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* Versions 15.1 r4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* Versions 15.1 r5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r7:*:*:*:*:*:* Versions 15.1 r7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:* Versions 16.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* Versions 16.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* Versions 16.1 r2 Vulnerable ·Juniper
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*16.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:*16.1 r4VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:*16.1 r6VulnerableJuniper
cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:*16.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:16.2:r3:*:*:*:*:*:*16.2 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:*17.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.1:r3:*:*:*:*:*:*17.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*17.2 r1VulnerableJuniper
  • cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:* Versions 16.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:* Versions 16.1 r4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:* Versions 16.1 r6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:* Versions 16.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.2:r3:*:*:*:*:*:* Versions 16.2 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:* Versions 17.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.1:r3:*:*:*:*:*:* Versions 17.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:* Versions 17.2 r1 Vulnerable ·Juniper

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 15.1R6-S2, 15.1R7, 16.1R5-S1, 16.1R6, 16.2R2-S2, 16.2R3, 17.1R2-S5, 17.1R3, 17.2R2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0006
  2. 2026-10-03 Alias added: GHSA-f33j-xhh7-r2cj

References

Patch 1

  • TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
  • TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
  • TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
See all 792 →

Sources

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