Junos OS: A race condition on receipt of crafted LLDP packets leads to a memory leak and an LLDP crash. (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.40 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker to cause LLDP to crash leading to a Denial of Service (DoS). This issue occurs when crafted LLDP packets are received by the device from an adjacent device. Multiple LACP flaps will occur after LLDP crashes. An indicator of compromise is to evaluate log file details for lldp with RLIMIT. Intervention should occur before 85% threshold of used KB versus maximum available KB memory is reached. show log messages | match RLIMIT | match lldp | last 20 Matching statement is " /kernel: %KERNEL-[number]: Process ([pid #],lldpd) has exceeded 85% of RLIMIT_DATA: " with [] as variable data to evaluate for. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R2-S7, 18.2R3; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D50, 18.2X75-D420; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2; 19.1 versions prior to 19.1R1-S4, 19.1R2.
Weaknesses (CWE)
- CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 3.3 | AV:A/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-12507
- GCVE · GCVE-0-2020-1641
CERT-FR advisories
- CERTFR-2020-AVI-420 — Multiples vulnérabilités dans 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-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-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:12.3x48:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d100:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d90:*:*:*:*:*:*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:*:*:*:*:*:*- +238 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 12.3 < 12.3R12-S15 ; affected 12.3X48 < 12.3X48-D95 ; affected 15.1 < 15.1R7-S6 ; affected 15.1X49 < 15.1X49-D200 ; affected 15.1X53 < 15.1X53-D593 ; affected 16.1 < 16.1R7-S7 |
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 |