VDB
ALPINE-CVE-2023-50387
ALPINE-CVE-2023-50387
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | bind | 9.14.4-r2, 9.10.3_p2-r0, 9.10.3-r1 |
| Alpine:v3.20 | dnsmasq | 2.89-r0, 2.89-r2, 2.89-r3 |
| Alpine:v3.23 | bind | 9.18.13-r1, 9.14.7-r5, 9.14.7-r4 |
| Alpine:v3.18 | unbound | 1.5.4-r0, 1.5.2-r1, 1.5.2-r0 |
| Alpine:v3.19 | dnsmasq | 0, 2.86-r0, 2.86-r1 |
| Alpine:v3.19 | unbound | 1.5.10-r1, 1.10.0-r0, 1.10.1-r0 |
| Alpine:v3.18 | dnsmasq | 2.89-r5, 2.89-r4, 2.89-r3 |
| Alpine:v3.22 | bind | 9.12.0-r1, 9.16.11-r0, 9.12.0-r0 |
| Alpine:v3.16 | bind | 9.7.0, 9.7.1-r0, 9.7.1 |
| Alpine:v3.19 | bind | 9.16.16-r2, *, 0 |
| Alpine:v3.21 | unbound | 1.7.3-r0, 1.8.1-r0, 1.8.1-r1 |
| Alpine:v3.22 | dnsmasq | 2.89-r6, 2.89-r5, 2.89-r4 |
| Alpine:v3.18 | bind | 9.18.13-r2, 9.18.13-r1, 9.16.22-r5 |
| Alpine:v3.17 | unbound | 1.9.1-r2, 1.9.5-r1, 1.6.0-r0 |
| Alpine:v3.20 | unbound | 1.16.2-r1, 1.17.0-r1, 1.17.1-r0 |
| Alpine:v3.22 | unbound | 1.17.1-r0, 1.10.0-r0, 1.10.1-r0 |
| Alpine:v3.17 | dnsmasq | 2.86-r4, 2.86-r5, 2.87-r0 |
| Alpine:v3.23 | dnsmasq | 2.86-r0, 2.86-r1, 2.86-r2 |
| Alpine:v3.17 | bind | 9.11.1_p2-r2, 9.11.2-r0, 9.11.2-r1 |
| Alpine:v3.23 | unbound | 1.7.3-r0, 1.9.6-r0, 1.9.5-r3 |
…and 2 more
Timeline
- Feb 14, 2024 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch