Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use this issue to perform Domain Hijacking attacks.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "1.14.0-1ubuntu0.1", "binary_name": "libc-ares-dev" }, { "binary_version": "1.14.0-1ubuntu0.1", "binary_name": "libc-ares2" } ] }
{ "ecosystem": "Ubuntu:18.04:LTS", "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "type": "Ubuntu", "score": "medium" } ], "id": "CVE-2021-3672" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "1.15.0-1ubuntu0.1", "binary_name": "libc-ares-dev" }, { "binary_version": "1.15.0-1ubuntu0.1", "binary_name": "libc-ares2" } ] }
{ "ecosystem": "Ubuntu:20.04:LTS", "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "type": "Ubuntu", "score": "medium" } ], "id": "CVE-2021-3672" } ] }