Junos OS and Junos OS Evolved: LLDP Out-of-Bounds Read vulnerability in l2cpd (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.65 % · percentile 51 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
An Out-of-bounds Read vulnerability in the processing of specially crafted LLDP frames by the Layer 2 Control Protocol Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved may allow an attacker to cause a Denial of Service (DoS), or may lead to remote code execution (RCE). Continued receipt and processing of these frames, sent from the local broadcast domain, will repeatedly crash the l2cpd process and sustain the Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S18; 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS Evolved versions prior to 20.4R2-EVO.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | juniper |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 2.0 | MEDIUM 5.8 | AV:A/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-2896
- GCVE · GCVE-0-2021-0277
CERT-FR advisories
- CERTFR-2021-AVI-526 — Multiples vulnérabilités les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s12:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s13:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s14:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s15:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s16:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s17:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s8:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:a1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f5-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s12:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:15.1:f6-s4:*:*:*:*:*:*- +223 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 12.3 < 12.3R12-S18 ; affected 15.1 < 15.1R7-S9 ; affected 17.3 < 17.3R3-S12 ; affected 17.4 < 17.4R2-S13, 17.4R3-S5 ; affected 18.1 < 18.1R3-S13 ; affected 18.2 < 18.2R3-S8 |
| Juniper Networks · Junos OS Evolved | affected unspecified < 20.4R2-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 |