CVE-2024-33655 Information

Description

The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases) aka the \DNSBomb\ issue.

Reference

https://datatracker.ietf.org/doc/html/rfc1035 https://nlnetlabs.nl/projects/unbound/security-advisories/ https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120 https://www.isc.org/blogs/2024-dnsbomb/ https://nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txt https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de https://alas.aws.amazon.com/ALAS-2024-1934.html https://meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/ https://sp2024.ieee-security.org/accepted-papers.html https://gitlab.isc.org/isc-projects/bind9/-/issues/4398