Junos OS Evolved: ACX7000 Series: Specific IPv6 transit traffic gets exceptioned to the routing-engine which causes increased CPU utilization (Juniper Networks Junos OS Evolved)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.67 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On receipt of specific IPv6 transit traffic, Junos OS Evolved on ACX7100-48L, ACX7100-32C and ACX7509 sends this traffic to the Routing Engine (RE) instead of forwarding it, leading to increased CPU utilization of the RE and a partial DoS. This issue only affects systems configured with IPv6. This issue does not affect ACX7024 which is supported from 22.3R1-EVO onwards where the fix has already been incorporated as indicated in the solution section. This issue affects Juniper Networks Junos OS Evolved on ACX7100-48L, ACX7100-32C, ACX7509: 21.1-EVO versions prior to 21.1R3-S2-EVO; 21.2-EVO versions prior to 21.2R3-S2-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R1-S1-EVO, 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.1R1-EVO.
Weaknesses (CWE)
- CWE-754 — Improper Check for Unusual or Exceptional Conditions
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | juniper |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · sirt@juniper.net (Secondary) |
European references
- ENISA EUVD · EUVD-2022-27374
- GCVE · GCVE-0-2022-22227
CERT-FR advisories
- CERTFR-2022-AVI-916 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos_os_evolved:21.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.1:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.1:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.2:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.3:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS Evolved | unaffected unspecified < 21.1R1-EVO ; affected 21.1-EVO < 21.1R3-S2-EVO ; affected 21.2-EVO < 21.2R3-S2-EVO ; affected 21.3-EVO < 21.3R3-EVO ; affected 21.4-EVO < 21.4R1-S1-EVO, 21.4R2-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 |