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New DNS Bug and Fix Announced

New DNS Bug and Fix Announced

Domain name registries are scrambling to patch a newly discovered bug in popular open source DNS software that could be exploited for denial-of-service attacks.

The bug and a corresponding fix were announced Monday by NLnet Labs, a research group that provides authoritative domain name server software called NSD to domain name registrars.

The bug allows for an attack on an NSD server that would cause it to stop responding to queries. The bug affects all versions of NSD 2.0.0 to 3.2.1, NLnet Labs said calling the bugfix “critical.” The bug is a “one-byte buffer overflow that allows a carefully crafted exploit to take down your name server,” NLnet Labs said.

URL: http://www.hackinthebox.org/index.php?name=News&file=article&sid=31366

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