Google employees have identified a total of seven vulnerabilities, including ones that allow remote code execution, in the Dnsmasq network services software.
Written and maintained by Simon Kelley, Dnsmasq is a lightweight tool designed to provide DNS, DHCP, router advertisement and network boot services for small networks. Dnsmasq is used by Linux distributions, routers, smartphones and many Internet of Things (IoT) devices. A scan for “Dnsmasq” using the Internet search engine Shodan reveals over 1.1 million instances worldwide.
An analysis of Dnsmasq conducted by Google’s security team revealed seven issues, including remote code execution, information disclosure, and denial-of-service (DoS) flaws that can be exploited via DNS or DHCP.
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