Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| redhat | enterprise_linux | - | - |
| redhat | enterprise_linux | - | - |
| redhat | enterprise_linux | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
21
Affected Products
66
References
redhat / enterprise_linux
| - |
| redhat | enterprise_linux | - | - |
| microsoft | windows_server_2008 | - | - |
| microsoft | windows_server_2012 | - | - |
| microsoft | windows_server_2012 | - | - |
| microsoft | windows_server_2016 | - | - |
| microsoft | windows_server_2019 | - | - |
| microsoft | windows_server_2022 | - | - |
| microsoft | windows_server_2022_23h2 | - | - |
| fedoraproject | fedora | - | - |
| thekelleys | dnsmasq | 2.90 | - |
| nic | knot_resolver | 5.71 | - |
| powerdns | recursor | 4.8.0 - 4.8.6 | - |
| powerdns | recursor | 4.9.0 - 4.9.3 | - |
| powerdns | recursor | 5.0.0 - 5.0.2 | - |
| isc | bind | 9.0.0 - 9.16.46 | - |
| isc | bind | 9.18.0 - 9.18.22 | - |
| isc | bind | 9.19.0 - 9.19.20 | - |
| nlnetlabs | unbound | 1.19.1 | - |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability
Impact