MX Series: L2ALD daemon may crash if a duplicate MAC is learned by two different interfaces (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.61 % · percentile 49 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.0 | MEDIUM 5.3 | CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 2.9 | AV:A/AC:M/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2018-0880
- GCVE · GCVE-0-2018-0056
CERT-FR advisories
- CERTFR-2018-AVI-487 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*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:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*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:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 15.1 < 15.1R7-S1 ; affected 16.1 < 16.1R4-S12, 16.1R6-S6 ; affected 16.2 < 16.2R2-S7 ; affected 17.1 < 17.1R2-S9 ; affected 17.2 < 17.2R1-S7, 17.2R2-S6 ; affected 17.3 < 17.3R2-S4, 17.3R3-S1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |