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...
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2018-5743 bind Fixed in: 9.14.1-r0
- Debian DEBIAN-CVE-2018-5743 bind9 Fixed in: 1:9.11.5.P4+dfsg-4
Original description The description as published by the source.
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.
References
- advisory kb.isc.org
- advisory synology.com
- web support.f5.com