National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-0056 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 1.6


Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 2.9 LOW
Vector: (AV:A/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 5.5


Access Vector (AV): Local_Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securitytracker.com/id/1041857 Third Party Advisory VDB Entry
https://kb.juniper.net/JSA10890 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:juniper:junos:15.1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:f2
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:f3
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:f4
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:f5
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:f6
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r2
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r3
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r4
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r5
     Show Matching CPE(s)
 cpe:/o:juniper:junos:15.1:r6
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:/o:juniper:junos:16.1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:16.1:r1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:16.1:r2
     Show Matching CPE(s)
 cpe:/o:juniper:junos:16.1:r3
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:/o:juniper:junos:16.2
     Show Matching CPE(s)
 cpe:/o:juniper:junos:16.2:r1
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:/o:juniper:junos:17.1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:17.1:r1
     Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:/o:juniper:junos:17.2
     Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:/o:juniper:junos:17.3
     Show Matching CPE(s)
 cpe:/o:juniper:junos:17.3:r1
     Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:/o:juniper:junos:17.4
     Show Matching CPE(s)
 cpe:/o:juniper:junos:17.4:r1
     Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:/o:juniper:junos:18.1
     Show Matching CPE(s)
 cpe:/o:juniper:junos:18.1:r1
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0056
NVD Published Date:
10/10/2018
NVD Last Modified:
01/22/2019