CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2018-5743
High (7.5). EPSS 6.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 6.4% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
- CWE
- CWE-770
- Published
- Modified
- Record from
- the NVD, synced
Affected
- f5:big-ip_access_policy_manager
- f5:big-ip_advanced_firewall_manager
- f5:big-ip_analytics
- f5:big-ip_application_acceleration_manager
- f5:big-ip_application_security_manager
- f5:big-ip_domain_name_system
- f5:big-ip_edge_gateway
- f5:big-ip_fraud_protection_service
- f5:big-ip_global_traffic_manager
- f5:big-ip_link_controller
- f5:big-ip_local_traffic_manager
- f5:big-ip_policy_enforcement_manager
- f5:big-ip_webaccelerator
- f5:big-iq_centralized_management
- f5:enterprise_manager
- f5:iworkflow
- isc:bind
References
- https://kb.isc.org/docs/cve-2018-5743
- https://support.f5.com/csp/article/K74009656?utm_source=f5support&%3Butm_medium=RSS
- https://www.synology.com/security/advisory/Synology_SA_19_20
- https://kb.isc.org/docs/cve-2018-5743
- https://support.f5.com/csp/article/K74009656?utm_source=f5support&%3Butm_medium=RSS