Seven flaws in open-source software Dnsmasq could allow DNS cache poisoning attacks and remote code execution. Researchers have uncovered a set of flaws in dnsmasq, popular open-source software used for caching Domain Name System (DNS) responses for home and commercial routers and servers. The set of seven flaws are comprised of buffer overflow issues and flaws allowing for DNS cache-poisoning attacks (also known as DNS spoofing). If exploited, these flaws could be chained together to allow remote code execution, denial of service and other attacks. Researchers have labeled the set of vulnerabilities “DNSpooq,” a combination of DNS spoofing, the concept of “a spook spying on internet traffic,” and the “q” at the end of dnsmasq.