DNS
AWS outage disrupts global websites and services
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A major outage at Amazon Web Services' US-EAST-1 region in northern Virginia caused widespread internet disruptions on Monday morning, October 20, 2025. DNS resolution issues affected numerous platforms, including Amazon's own services and third-party apps. The incident highlighted vulnerabilities in cloud infrastructure.
BIND and Unbound DNS resolvers disclose cache poisoning vulnerabilities
Developers of the widely used BIND DNS software have warned of two high-severity vulnerabilities that could enable cache poisoning attacks, similar to those revealed in 2008. Unbound, another DNS resolver, faces a related flaw reported by the same researchers. Patches for all issues became available on October 22, 2025.