{"id":"USN-6164-2","summary":"c-ares vulnerabilities","details":"USN-6164-1 fixed several vulnerabilities in c-ares. This update provides\nthe corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n Hannes Moesl discovered that c-ares incorrectly handled certain ipv6\n addresses. An attacker could use this issue to cause c-ares to crash,\n resulting in a denial of service, or possibly execute arbitrary code.\n (CVE-2023-31130)\n\n Xiang Li discovered that c-ares incorrectly handled certain UDP packets. A\n remote attacker could possibly use this issue to cause c-res to crash,\n resulting in a denial of service. (CVE-2023-32067)\n","modified":"2026-06-25T13:32:08.627428249Z","published":"2023-09-11T15:51:51Z","related":["UBUNTU-CVE-2023-31130","UBUNTU-CVE-2023-32067"],"upstream":["CVE-2023-31130","CVE-2023-32067","UBUNTU-CVE-2023-31130","UBUNTU-CVE-2023-32067"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6164-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-31130"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-32067"}],"affected":[{"package":{"name":"c-ares","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/c-ares?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.0-3ubuntu0.2+esm2"}]}],"versions":["1.10.0-2","1.10.0-3","1.10.0-3ubuntu0.1","1.10.0-3ubuntu0.2","1.10.0-3ubuntu0.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.10.0-3ubuntu0.2+esm2","binary_name":"libc-ares2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2023-31130","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2023-32067","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6164-2.json"}},{"package":{"name":"c-ares","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/c-ares?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.0-1ubuntu0.2+esm1"}]}],"versions":["1.13.0-2","1.13.0-3","1.14.0-1","1.14.0-1ubuntu0.1","1.14.0-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libc-ares2","binary_version":"1.14.0-1ubuntu0.2+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2023-31130","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-32067","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6164-2.json"}}],"schema_version":"1.7.5"}