Resource exhaustion in N/a
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, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the "DNSBomb" issue.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Weakness classification (CWE)
Public proof-of-concept exploits
References
- datatracker.ietf.org/doc/html/rfc1035
- nlnetlabs.nl/projects/unbound/security-advisories/
- github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md
- www.isc.org/blogs/2024-dnsbomb/
- nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txt
- github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de
- alas.aws.amazon.com/ALAS-2024-1934.html
- meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legiti…
- sp2024.ieee-security.org/accepted-papers.html
- gitlab.isc.org/isc-projects/bind9/-/issues/4398
Frequently asked questions
- What is CVE-2024-33655?
- CVE-2024-33655 is a high-severity vulnerability in N/a, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2024-06-06.
- How severe is CVE-2024-33655?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-33655 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.