A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate the attack. This issue affects BIND 9 versions 9.18.1 through 9.18.27, 9.19.0 through 9.19.24, and 9.18.11-S1 through 9.18.27-S1.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-dnsutils" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-dnsutils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-doc" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-host" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-host-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-libs" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-libs-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-utils" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9-utils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "bind9utils" }, { "binary_version": "1:9.18.28-0ubuntu0.20.04.1", "binary_name": "dnsutils" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-dev" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-dnsutils" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-dnsutils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-doc" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-host" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-host-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-libs" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-libs-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-utils" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9-utils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "bind9utils" }, { "binary_version": "1:9.18.28-0ubuntu0.22.04.1", "binary_name": "dnsutils" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-dev" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-dnsutils" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-dnsutils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-doc" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-host" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-host-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-libs" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-libs-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-utils" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9-utils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "bind9utils" }, { "binary_version": "1:9.18.28-0ubuntu1", "binary_name": "dnsutils" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-dev" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-dnsutils" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-dnsutils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-doc" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-host" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-host-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-libs" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-libs-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-utils" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9-utils-dbgsym" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "bind9utils" }, { "binary_version": "1:9.18.28-0ubuntu0.24.04.1", "binary_name": "dnsutils" } ] }