Junos OS: vMX and MX150: Denial of Service vulnerability in packet processing (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.32 % · percentile 71 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A vulnerability in Juniper Networks Junos OS on vMX and MX150 devices may allow an attacker to cause a Denial of Service (DoS) by sending specific packets requiring special processing in microcode that the flow cache can't handle, causing the riot forwarding daemon to crash. By continuously sending the same specific packets, an attacker can repeatedly crash the riot process causing a sustained Denial of Service. Flow cache is specific to vMX based products and the MX150, and is enabled by default in performance mode. This issue can only be triggered by traffic destined to the device. Transit traffic will not cause the riot daemon to crash. When the issue occurs, a core dump and riot log file entry are generated. For example: /var/crash/core.J-UKERN.mpc0.1557255993.3864.gz /home/pfe/RIOT logs: fpc0 riot[1888]: PANIC in lu_reorder_send_packet_postproc(): fpc0 riot[6655]: PANIC in lu_reorder_send_packet_postproc(): This issue affects Juniper Networks Junos OS: 18.1 versions prior to 18.1R3 on vMX and MX150; 18.2 versions prior to 18.2R3 on vMX and MX150; 18.2X75 versions prior to 18.2X75-D60 on vMX and MX150; 18.3 versions prior to 18.3R3 on vMX and MX150; 18.4 versions prior to 18.4R2 on vMX and MX150; 19.1 versions prior to 19.1R2 on vMX and MX150. This issue does not affect Junos OS versions prior to 18.1R1.
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-12495
- GCVE · GCVE-0-2020-1627
CERT-FR advisories
- CERTFR-2020-AVI-198 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2x75:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2x75:d20:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2x75:d30:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.2x75:d40:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 18.1 < 18.1R3 ; affected 18.2 < 18.2R3 ; affected 18.2X75 < 18.2X75-D60 ; affected 18.3 < 18.3R3 ; affected 18.4 < 18.4R2 ; affected 19.1 < 19.1R2 |
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 |