Junos OS Evolved: The kernel might restart in a BGP scenario where "bgp auto-discovery" is enabled and such a neighbor flaps (Juniper Networks Junos OS Evolved)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.53 % · percentile 45 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A Use After Free vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). In a Non Stop Routing (NSR) scenario, an unexpected kernel restart might be observed if "bgp auto-discovery" is enabled and if there is a BGP neighbor flap of auto-discovery sessions for any reason. This is a race condition which is outside of an attackers direct control and it depends on system internal timing whether this issue occurs. This issue affects Juniper Networks Junos OS Evolved: 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO; 22.1 versions prior to 22.1R2-EVO; 22.2 versions prior to 22.2R1-S1-EVO, 22.2R2-EVO.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
European references
- ENISA EUVD · EUVD-2023-26565
- GCVE · GCVE-0-2023-22402
CERT-FR advisories
- CERTFR-2023-AVI-0051 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
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:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:22.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS Evolved | affected 21.3 < 21.3R3-EVO ; affected 21.4 < 21.4R2-EVO ; affected 22.1 < 22.1R2-EVO ; affected 22.2 < 22.2R1-S1-EVO, 22.2R2-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 |