Junos OS Evolved: The IPv6 BGP session will flap due to receipt of a specific IPv6 packet (Juniper Networks Junos OS Evolved)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.88 % · percentile 59 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
On Juniper Networks Junos OS Evolved devices, receipt of a specific IPv6 packet may cause an established IPv6 BGP session to terminate, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect IPv4 BGP sessions. This issue affects IBGP or EBGP peer sessions with IPv6. This issue affects: Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S3-EVO; 20.2 versions prior to 20.2R2-S1-EVO; 20.3 versions prior to 20.3R2-EVO. This issue does not affect Juniper Networks Junos OS releases.
Weaknesses (CWE)
- CWE-665 — Improper Initialization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | juniper |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-2021-2845
- GCVE · GCVE-0-2021-0226
CERT-FR advisories
- CERTFR-2021-AVI-273 — Multiples vulnérabilités dans Junos OS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS Evolved | affected 19.4-EVO < 19.4R2-S3-EVO ; affected 20.1-EVO < 20.1R2-S3-EVO ; affected 20.2-EVO < 20.2R2-S1-EVO ; affected 20.3-EVO < 20.3R2-EVO |
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 |