CVE-2018-5743
Limiting simultaneous TCP clients was ineffective
HIGH 7.5
At a glance
- Source
- NVD
- EPSS
- EPSS 6.43 % · percentile 94 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- isc
- NVD status
- Modified
Description
By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.
Weaknesses (CWE)
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | isc |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · security-officer@isc.org (Secondary) |
| CVSS 2.0 | MEDIUM 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2018-17512
- GCVE · GCVE-0-2018-5743
CERT-FR advisories
- CERTFR-2020-AVI-015 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
- CERTFR-2019-AVI-187 — Multiples vulnérabilités dans BIND · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_application_acceleration_manager:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 13.1.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_advanced_firewall_manager:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_analytics:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 13.1.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_access_policy_manager:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.1cpe:2.3:a:f5:big-ip_application_security_manager:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_edge_gateway:15.0.0:*:*:*:*:*:*:*cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*≥ 11.5.2 ≤ 11.6.5cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*≥ 12.1.0 ≤ 12.1.4cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*≥ 13.0.0 ≤ 13.1.1cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*≥ 14.0.0 ≤ 14.1.0cpe:2.3:a:f5:big-ip_fraud_protection_service:15.0.0:*:*:*:*:*:*:*- +38 more
Affected products
| Product | Versions |
|---|---|
| ISC · BIND 9 | affected BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743. |
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 |