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.
Vulnerability category: Input validation
Products affected by CVE-2018-0056
- cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.2:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.1:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.2:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.3:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0056
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0056
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.9
|
LOW | AV:A/AC:M/Au:N/C:N/I:N/A:P |
5.5
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
1.6
|
3.6
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
Juniper Networks, Inc. |
CWE ids for CVE-2018-0056
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-0056
-
http://www.securitytracker.com/id/1041857
Juniper Junos MX Series 'l2-backhaul VPN' Lets Remote Users Deny Service - SecurityTrackerThird Party Advisory;VDB Entry
-
https://kb.juniper.net/JSA10890
Juniper Networks - 2018-10 Security Bulletin: MX Series: L2ALD daemon may crash if a duplicate MAC is learned by two different interfaces (CVE-2018-0056)Vendor Advisory
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