Description
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
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-2023-4408
- Unknown ALPINE-CVE-2023-5517
- Unknown ALPINE-CVE-2023-3341
- Unknown ALPINE-CVE-2023-4236
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