VDB
ALPINE-CVE-2021-20277
ALPINE-CVE-2021-20277
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.
Risk Scores
CVSS 3.1
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:v3.19 | samba | 3.2.11-r0, 3.2.10-r0, 0 |
| Alpine:v3.13 | samba | 4.8.11-r0, 3.6.1-r1, 3.6.1-r0 |
| Alpine:v3.22 | samba | 4.8.2-r1, 4.0.0, 0 |
| Alpine:v3.16 | samba | 4.1.15-r0, 4.6.1-r1, 4.6.1-r2 |
| Alpine:v3.20 | samba | 3.6.16-r0, 3.5.5-r0, 4.1.4-r0 |
| Alpine:v3.24 | samba | 4.0.0, 0 |
| Alpine:v3.15 | samba | 4.4.2-r0, 3.2.10-r0, 3.2.11-r0 |
| Alpine:v3.12 | samba | 3.2.10-r0, 4.0.0, 0 |
| Alpine:v3.23 | samba | 4.12.8-r0, 4.12.7-r0, 4.12.5-r0 |
| Alpine:v3.14 | samba | 3.3.4-r0, 3.3.5-r0, 3.3.5-r1 |
| Alpine:v3.18 | samba | 4.11.4-r1, 4.1.5-r0, 4.1.5-r1 |
| Alpine:v3.21 | samba | 3.2.8-r0, 3.2.8-r1, 3.3.4-r0 |
| Alpine:v3.17 | samba | 0, 4.0.0, 0 |
Timeline
- May 12, 2021 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated