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High severity · published Jun 6, 2024
CVE-2024-33655
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,…
7.5
CVSS
1.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DS
Dns Server · Technitium
through 1.19.3 · source: CISA
Affected product
DS
Dns Server
Technitium
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-33655
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-33655
alas.aws.amazon.com
https://alas.aws.amazon.com/ALAS-2024-1934.html
datatracker.ietf.org
https://datatracker.ietf.org/doc/html/rfc1035
github.com
https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de
github.com
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120
gitlab.isc.org
https://gitlab.isc.org/isc-projects/bind9/-/issues/4398
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/
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