High severity7.5OSV Advisory· Published Jun 6, 2024· Updated Apr 15, 2026
CVE-2024-33655
CVE-2024-33655
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- osv-coords9 versionspkg:rpm/almalinux/python3-unboundpkg:rpm/almalinux/unboundpkg:rpm/almalinux/unbound-anchorpkg:rpm/almalinux/unbound-develpkg:rpm/almalinux/unbound-dracutpkg:rpm/almalinux/unbound-libspkg:rpm/almalinux/unbound-utilspkg:rpm/opensuse/unbound&distro=openSUSE%20Tumbleweedpkg:rpm/suse/unbound&distro=SUSE%20Linux%20Micro%206.0
< 1.24.2-7.el10+ 8 more
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.24.2-7.el10
- (no CPE)range: < 1.20.0-1.1
- (no CPE)range: < 1.21.0-1.1
Patches
Vulnerability mechanics
References
15- alas.aws.amazon.com/ALAS-2024-1934.htmlnvd
- datatracker.ietf.org/doc/html/rfc1035nvd
- github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3denvd
- github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.mdnvd
- gitlab.isc.org/isc-projects/bind9/-/issues/4398nvd
- lists.debian.org/debian-lts-announce/2025/08/msg00019.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QITY2QBX2OCBTZIXD2A5ES62STFIA4AL/nvd
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/nvd
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QITY2QBX2OCBTZIXD2A5ES62STFIA4AL/nvd
- meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/nvd
- nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txtnvd
- nlnetlabs.nl/projects/unbound/security-advisories/nvd
- sp2024.ieee-security.org/accepted-papers.htmlnvd
- www.isc.org/blogs/2024-dnsbomb/nvd
News mentions
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