VDB
ALPINE-CVE-2019-14870
ALPINE-CVE-2019-14870
PUBLISHED
CVSS 5.400000095367432 MEDIUM
All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.
Risk Scores
CVSS 3.1
5.400000095367432
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | heimdal | 1.4-r8, 1.4-r9, 1.5-r2 |
| Alpine:v3.20 | heimdal | 1.5.2-r7, 1.5.3-r0, 1.5.3-r1 |
| Alpine:v3.18 | samba | 4.10.2-r0, 4.1.9-r0, 4.1.7-r0 |
| Alpine:v3.24 | samba | 0 |
| Alpine:v3.22 | heimdal | 1.4-r9, 0, 1.2.1-r0 |
| Alpine:v3.15 | samba | 4.4.3-r0, 4.4.2-r1, 4.4.2-r0 |
| Alpine:v3.19 | heimdal | 1.3.3-r0, 1.2.1-r2, 1.2.1-r3 |
| Alpine:v3.10 | samba | 4.4.2-r1, 4.4.2-r0, 4.2.9-r1 |
| Alpine:v3.16 | heimdal | 0, 7.7.0-r8, 7.7.0-r7 |
| Alpine:v3.21 | samba | 3.6.5-r0, 0, 3.2.10-r0 |
| Alpine:v3.15 | heimdal | 1.4-r7, 1.4-r11, 7.5.0-r2 |
| Alpine:v3.23 | heimdal | 7.5.0-r4, 1.4-r9, 1.3.1-r2 |
| Alpine:v3.19 | samba | 4.10.6-r0, 4.10.5-r0, 4.10.4-r1 |
| Alpine:v3.17 | heimdal | 1.4-r4, 0, 1.2.1-r0 |
| Alpine:v3.13 | samba | 4.11.2-r2, 4.2.0-r0, 4.2.1-r0 |
| Alpine:v3.14 | heimdal | 1.2.1-r2, 0, 1.2.1-r0 |
| Alpine:v3.24 | heimdal | 0 |
| Alpine:v3.20 | samba | 3.5.9-r1, 4.2.3-r1, 4.1.5-r1 |
| Alpine:v3.17 | samba | 3.3.8-r0, 3.4.4-r0, 3.4.5-r0 |
| Alpine:v3.12 | samba | 4.6.4-r0, 4.6.1-r1, 4.2.1-r1 |
…and 6 more
Timeline
- Dec 10, 2019 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 9, 2026 CVE Updated