Junos OS: QFX Series: The PFE may crash when a lot of MAC addresses are being learned and aged (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A Use After Free vulnerability in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series allows an adjacent attacker to cause the Packet Forwarding Engine to crash and restart, leading to a Denial of Service (DoS). The PFE may crash when a lot of MAC learning and aging happens, but due to a Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) that is outside the attackers direct control. This issue affects: Juniper Networks Junos OS versions prior to 19.4R3-S10 on QFX Series; 20.2 versions prior to 20.2R3-S7 on QFX Series; 20.3 versions prior to 20.3R3-S6 on QFX Series; 20.4 versions prior to 20.4R3-S5 on QFX Series; 21.1 versions prior to 21.1R3-S4 on QFX Series; 21.2 versions prior to 21.2R3-S3 on QFX Series; 21.3 versions prior to 21.3R3-S3 on QFX Series; 21.4 versions prior to 21.4R3 on QFX Series; 22.1 versions prior to 22.1R3 on QFX Series; 22.2 versions prior to 22.2R2 on QFX Series.
Weaknesses (CWE)
- CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization
- CWE-416 — Use After Free
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
European references
- ENISA EUVD · EUVD-2023-32602
- GCVE · GCVE-0-2023-28984
CERT-FR advisories
- CERTFR-2023-AVI-0310 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:20.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r3-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:21.1:-:*:*:*:*:*:*- +46 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected unspecified < 19.4R3-S10 ; affected 20.2 < 20.2R3-S7 ; affected 20.3 < 20.3R3-S6 ; affected 20.4 < 20.4R3-S5 ; affected 21.1 < 21.1R3-S4 ; affected 21.2 < 21.2R3-S3 |
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 |