VDB
ALPINE-CVE-2018-20217
ALPINE-CVE-2018-20217
PUBLISHED
CVSS 5.300000190734863 MEDIUM
A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obtain a krbtgt ticket using an older encryption type (single-DES, triple-DES, or RC4), the attacker can crash the KDC by making an S4U2Self request.
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.9 | krb5 | 1.15.3-r1, 0, 0 |
| Alpine:v3.24 | krb5 | 0 |
| Alpine:v3.6 | krb5 | 1.13.1-r0, 0, 1.11-r1 |
| Alpine:v3.13 | krb5 | 1.15.3-r0, 1.15.2-r0, 1.13-r1 |
| Alpine:v3.23 | krb5 | 0, 0, 1.15.3-r1 |
| Alpine:v3.10 | krb5 | 1.15.2-r1, 1.15.2-r0, 1.15.1-r0 |
| Alpine:v3.22 | krb5 | 1.11-r0, 0, 1.11-r1 |
| Alpine:v3.15 | krb5 | 1.14-r0, 0, 0 |
| Alpine:v3.18 | krb5 | 0, 0, 1.15.3-r1 |
| Alpine:v3.19 | krb5 | 1.11.2-r2, 0, 1.11-r1 |
| Alpine:v3.21 | krb5 | 1.11.2-r1, 0, 1.15.3-r1 |
| Alpine:v3.12 | krb5 | 1.13.2-r1, 1.11-r1, 1.11.2-r0 |
| Alpine:v3.7 | krb5 | 1.11.2-r1, 1.11.2-r2, 1.11.3-r0 |
| Alpine:v3.17 | krb5 | 1.11-r1, 1.11-r0, 0 |
| Alpine:v3.11 | krb5 | 1.11-r0, 0, 0 |
| Alpine:v3.20 | krb5 | 1.13.2-r0, 0, 1.15.3-r1 |
| Alpine:v3.8 | krb5 | 1.15.2-r1, 0, 1.15.3-r0 |
| Alpine:v3.14 | krb5 | 0, 1.11-r0, 1.11-r1 |
| Alpine:v3.16 | krb5 | 1.11-r0, 1.14-r0, 1.14-r1 |
Timeline
- Dec 26, 2018 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 9, 2026 CVE Updated