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.
References (15)
Core 15
Core References
Various Sources
https://alas.aws.amazon.com/ALAS-2024-1934.html
Various Sources
https://datatracker.ietf.org/doc/html/rfc1035
Various Sources
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120
Various Sources
https://meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/
Various Sources
https://nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txt
Various Sources
https://nlnetlabs.nl/projects/unbound/security-advisories/
Various Sources
https://sp2024.ieee-security.org/accepted-papers.html
Various Sources
https://www.isc.org/blogs/2024-dnsbomb/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/
Issue Tracking
https://gitlab.isc.org/isc-projects/bind9/-/issues/4398
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/QITY2QBX2OCBTZIXD2A5ES62STFIA4AL/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QITY2QBX2OCBTZIXD2A5ES62STFIA4AL/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/
Scores
CVSS v3
7.5
EPSS
0.0362
EPSS Percentile
87.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Published
Jun 06, 2024
Tracked Since
Feb 18, 2026