JuniperCVELIST:CVE-2018-0006CVE-2018-0006 Junos OS: bbe-smgd process denial of service while processing VLAN authentication requests/rejects
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
23.1%
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.
CNA Affected
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "15.1R6-S2, 15.1R7",
"status": "affected",
"version": "15.1",
"versionType": "custom"
},
{
"lessThan": "16.1R5-S1, 16.1R6",
"status": "affected",
"version": "16.1",
"versionType": "custom"
},
{
"lessThan": "16.2R2-S2, 16.2R3",
"status": "affected",
"version": "16.2",
"versionType": "custom"
},
{
"lessThan": "17.1R2-S5, 17.1R3",
"status": "affected",
"version": "17.1",
"versionType": "custom"
},
{
"lessThan": "17.2R2",
"status": "affected",
"version": "17.2",
"versionType": "custom"
}
]
}
]Related
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
23.1%