Astra Linux – Vulnerability in unbound

A vulnerability in caching resolvers called “Rebirthday Attack” has been discovered in resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., with the option --enable-subnet, and when configured to send ECS information along with queries to...

Unity Linux 20.1070e Security Update: unbound (UTSA-2026-007096)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007096 advisory. A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also...