USN-6164-1 fixed several vulnerabilities in c-ares. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
Original advisory details:
Hannes Moesl discovered that c-ares incorrectly handled certain ipv6 addresses. An attacker could use this issue to cause c-ares to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-31130)
Xiang Li discovered that c-ares incorrectly handled certain UDP packets. A remote attacker could possibly use this issue to cause c-res to crash, resulting in a denial of service. (CVE-2023-32067)
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "1.10.0-3ubuntu0.2+esm2", "binary_name": "libc-ares-dev" }, { "binary_version": "1.10.0-3ubuntu0.2+esm2", "binary_name": "libc-ares2" }, { "binary_version": "1.10.0-3ubuntu0.2+esm2", "binary_name": "libc-ares2-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "1.14.0-1ubuntu0.2+esm1", "binary_name": "libc-ares-dev" }, { "binary_version": "1.14.0-1ubuntu0.2+esm1", "binary_name": "libc-ares2" }, { "binary_version": "1.14.0-1ubuntu0.2+esm1", "binary_name": "libc-ares2-dbgsym" } ] }