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Vulnerability Details : CVE-2018-0056

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.
Publish Date : 2018-10-10 Last Update Date : 2019-10-09
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)

- Products Affected By CVE-2018-0056

# Product Type Vendor Product Version Update Edition Language
1 OS Juniper Junos 15.1 F6 * * Version Details Vulnerabilities
2 OS Juniper Junos 15.1 R2 * * Version Details Vulnerabilities
3 OS Juniper Junos 15.1 F3 * * Version Details Vulnerabilities
4 OS Juniper Junos 15.1 R6 * * Version Details Vulnerabilities
5 OS Juniper Junos 15.1 R4 * * Version Details Vulnerabilities
6 OS Juniper Junos 15.1 F5 * * Version Details Vulnerabilities
7 OS Juniper Junos 15.1 R5 * * Version Details Vulnerabilities
8 OS Juniper Junos 15.1 R1 * * Version Details Vulnerabilities
9 OS Juniper Junos 15.1 * * * Version Details Vulnerabilities
10 OS Juniper Junos 15.1 R3 * * Version Details Vulnerabilities
11 OS Juniper Junos 15.1 F4 * * Version Details Vulnerabilities
12 OS Juniper Junos 15.1 F2 * * Version Details Vulnerabilities
13 OS Juniper Junos 16.1 R1 * * Version Details Vulnerabilities
14 OS Juniper Junos 16.1 R3 * * Version Details Vulnerabilities
15 OS Juniper Junos 16.1 * * * Version Details Vulnerabilities
16 OS Juniper Junos 16.1 R2 * * Version Details Vulnerabilities
17 OS Juniper Junos 16.2 * * * Version Details Vulnerabilities
18 OS Juniper Junos 16.2 R1 * * Version Details Vulnerabilities
19 OS Juniper Junos 17.1 R1 * * Version Details Vulnerabilities
20 OS Juniper Junos 17.1 * * * Version Details Vulnerabilities
21 OS Juniper Junos 17.2 * * * Version Details Vulnerabilities
22 OS Juniper Junos 17.3 * * * Version Details Vulnerabilities
23 OS Juniper Junos 17.3 R1 * * Version Details Vulnerabilities
24 OS Juniper Junos 17.4 * * * Version Details Vulnerabilities
25 OS Juniper Junos 17.4 R1 * * Version Details Vulnerabilities
26 OS Juniper Junos 18.1 R1 * * Version Details Vulnerabilities
27 OS Juniper Junos 18.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Juniper Junos 27

- References For CVE-2018-0056

- Metasploit Modules Related To CVE-2018-0056

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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