VDB
ALPINE-CVE-2020-27840
ALPINE-CVE-2020-27840
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
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:v3.14 | samba | 0, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.22 | samba | 4.7.0-r2, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.17 | samba | 0, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.13 | samba | 3.2.8-r1, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.12 | samba | 3.2.10-r0, 0, 4.8.8-r0 |
| Alpine:v3.20 | samba | 4.2.3-r2, 0, 3.2.10-r0 |
| Alpine:v3.16 | samba | 4.2.3-r2, 3.5.6-r1, 3.5.6-r0 |
| Alpine:v3.19 | samba | 4.8.8-r0, 0, 3.2.10-r0 |
| Alpine:v3.23 | samba | 0, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.21 | samba | 3.2.10-r0, 4.8.8-r0, 4.8.7-r0 |
| Alpine:v3.18 | samba | 3.2.11-r1, 4.6.0-r0, 4.6.1-r0 |
| Alpine:v3.15 | samba | 4.8.8-r0, 3.2.10-r0, 3.2.11-r1 |
Timeline
- May 12, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch