https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-11T19:25:33.955891+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2021-3672 CVE-2021-3672 2026-10-11T19:25:33.958546+00:00

Affected: c-ares

A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

 https://vulnerability.circl.lu/vuln/usn-5034-1 USN-5034-1 — c-ares vulnerability 2026-10-11T19:25:33.958709+00:00

Affected: Ubuntu:18.04:LTS: c-ares, Ubuntu:20.04:LTS: c-ares

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.