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.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "lwresd": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "bind9utils": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "bind9": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libbind-dev": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "host": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "bind9-doc": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "liblwres90": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libisccfg90": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libisccc90": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libdns100": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libbind9-90": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "bind9-host": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "libisc95": "1:9.9.5.dfsg-3ubuntu0.19+esm1", "dnsutils": "1:9.9.5.dfsg-3ubuntu0.19+esm1" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "bind9-host-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "lwresd": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc-export160-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc-export140-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns162": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9utils": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc-export140-udeb-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs-export141-udeb-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc-export160-udeb-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libbind9-140": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns162-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc-export160": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9utils-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg-export140-udeb": "1:9.10.3.dfsg.P4-8ubuntu1.14", "dnsutils": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg140": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs-export141": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns-export162": "1:9.10.3.dfsg.P4-8ubuntu1.14", "liblwres141-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "dnsutils-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libbind-export-dev": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns-export162-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg140-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg-export140-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "liblwres141": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc160-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc-export140": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs-export141-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libbind9-140-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns-export162-udeb": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs-export141-udeb": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc140-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "lwresd-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc160": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libbind-dev": "1:9.10.3.dfsg.P4-8ubuntu1.14", "host": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg-export140": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisc-export160-udeb": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9-doc": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc140": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs141": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccc-export140-udeb": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libirs141-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libdns-export162-udeb-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14", "bind9-host": "1:9.10.3.dfsg.P4-8ubuntu1.14", "libisccfg-export140-udeb-dbgsym": "1:9.10.3.dfsg.P4-8ubuntu1.14" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "bind9-host-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libbind9-160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisccfg160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisc-export169-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libdns1100-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "bind9utils": "1:9.11.3+dfsg-1ubuntu1.7", "libdns-export1100": "1:9.11.3+dfsg-1ubuntu1.7", "bind9-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisccc-export160": "1:9.11.3+dfsg-1ubuntu1.7", "libisccfg-export160": "1:9.11.3+dfsg-1ubuntu1.7", "liblwres160": "1:9.11.3+dfsg-1ubuntu1.7", "libirs-export160": "1:9.11.3+dfsg-1ubuntu1.7", "bind9utils-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisccc-export160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libirs160": "1:9.11.3+dfsg-1ubuntu1.7", "libisccfg-export160-udeb": "1:9.11.3+dfsg-1ubuntu1.7", "libisc-export169": "1:9.11.3+dfsg-1ubuntu1.7", "libisc169-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "dnsutils-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libbind-export-dev": "1:9.11.3+dfsg-1ubuntu1.7", "libdns1100": "1:9.11.3+dfsg-1ubuntu1.7", "libisccc160": "1:9.11.3+dfsg-1ubuntu1.7", "libdns-export1100-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libdns-export1100-udeb": "1:9.11.3+dfsg-1ubuntu1.7", "liblwres160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libirs-export160-udeb": "1:9.11.3+dfsg-1ubuntu1.7", "bind9": "1:9.11.3+dfsg-1ubuntu1.7", "libisc169": "1:9.11.3+dfsg-1ubuntu1.7", "libbind-dev": "1:9.11.3+dfsg-1ubuntu1.7", "libirs-export160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisccc-export160-udeb": "1:9.11.3+dfsg-1ubuntu1.7", "libisc-export169-udeb": "1:9.11.3+dfsg-1ubuntu1.7", "bind9-doc": "1:9.11.3+dfsg-1ubuntu1.7", "libirs160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "libisccfg160": "1:9.11.3+dfsg-1ubuntu1.7", "libbind9-160": "1:9.11.3+dfsg-1ubuntu1.7", "libisccc160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "bind9-host": "1:9.11.3+dfsg-1ubuntu1.7", "libisccfg-export160-dbgsym": "1:9.11.3+dfsg-1ubuntu1.7", "dnsutils": "1:9.11.3+dfsg-1ubuntu1.7" } ] }