JuniperCVELIST:CVE-2018-0056CVE-2018-0056 MX Series: L2ALD daemon may crash if a duplicate MAC is learned by two different interfaces
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
AI Score
Confidence
High
EPSS
Percentile
25.7%
If a duplicate MAC address is learned by two different interfaces on an MX Series device, the MAC address learning function correctly flaps between the interfaces. However, the Layer 2 Address Learning Daemon (L2ALD) daemon might crash when attempting to delete the duplicate MAC address when the particular entry is not found in the internal MAC address table. This issue only occurs on MX Series devices with l2-backhaul VPN configured. No other products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S1 on MX Series; 16.1 versions prior to 16.1R4-S12, 16.1R6-S6 on MX Series; 16.2 versions prior to 16.2R2-S7 on MX Series; 17.1 versions prior to 17.1R2-S9 on MX Series; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6 on MX Series; 17.3 versions prior to 17.3R2-S4, 17.3R3-S1 on MX Series; 17.4 versions prior to 17.4R1-S5 on MX Series; 18.1 versions prior to 18.1R2 on MX Series.
CNA Affected
[
{
"platforms": [
"MX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "15.1R7-S1",
"status": "affected",
"version": "15.1",
"versionType": "custom"
},
{
"lessThan": "16.1R4-S12, 16.1R6-S6",
"status": "affected",
"version": "16.1",
"versionType": "custom"
},
{
"lessThan": "16.2R2-S7",
"status": "affected",
"version": "16.2",
"versionType": "custom"
},
{
"lessThan": "17.1R2-S9",
"status": "affected",
"version": "17.1",
"versionType": "custom"
},
{
"lessThan": "17.2R1-S7, 17.2R2-S6",
"status": "affected",
"version": "17.2",
"versionType": "custom"
},
{
"lessThan": "17.3R2-S4, 17.3R3-S1",
"status": "affected",
"version": "17.3",
"versionType": "custom"
},
{
"lessThan": "17.4R1-S5",
"status": "affected",
"version": "17.4",
"versionType": "custom"
},
{
"lessThan": "18.1R2",
"status": "affected",
"version": "18.1",
"versionType": "custom"
}
]
}
]Related
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
AI Score
Confidence
High
EPSS
Percentile
25.7%