Vojtěch Vobr discovered that c-ares incorrectly handled user input from local configuration files. An attacker could possibly use this issue to cause a denial of service via application crash.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_name": "libc-ares-dev", "binary_version": "1.10.0-3ubuntu0.2+esm3" }, { "binary_name": "libc-ares2", "binary_version": "1.10.0-3ubuntu0.2+esm3" }, { "binary_name": "libc-ares2-dbgsym", "binary_version": "1.10.0-3ubuntu0.2+esm3" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_name": "libc-ares-dev", "binary_version": "1.14.0-1ubuntu0.2+esm2" }, { "binary_name": "libc-ares2", "binary_version": "1.14.0-1ubuntu0.2+esm2" }, { "binary_name": "libc-ares2-dbgsym", "binary_version": "1.14.0-1ubuntu0.2+esm2" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libc-ares-dev", "binary_version": "1.15.0-1ubuntu0.5" }, { "binary_name": "libc-ares2", "binary_version": "1.15.0-1ubuntu0.5" }, { "binary_name": "libc-ares2-dbgsym", "binary_version": "1.15.0-1ubuntu0.5" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libc-ares-dev", "binary_version": "1.18.1-1ubuntu0.22.04.3" }, { "binary_name": "libc-ares2", "binary_version": "1.18.1-1ubuntu0.22.04.3" }, { "binary_name": "libc-ares2-dbgsym", "binary_version": "1.18.1-1ubuntu0.22.04.3" } ] }