Description
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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| bind | — | 9.18.24-r0 |
| dnsmasq | — | 2.90-r0 |
| unbound | — | 1.19.1-r0 |
References
Similar Threats
- Unknown ALPINE-CVE-2023-50387
- Unknown ALPINE-CVE-2023-50868
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