CVE-2017-7551

critical

Published 2017-08-16 · Modified 2026-05-13

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

5.0

VIR risk

9.8

Description

389-ds-base version before 1.3.5.19 and 1.3.6.7 are vulnerable to password brute-force attacks during account lockout due to different return codes returned on password attempts.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://pagure.io/389-ds-base/issue/49336

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-7551

OS impact

OS	Version	Status	Fixed in
debian	trixie	fixed	`1.3.6.7-1`
debian	bookworm	fixed	`1.3.6.7-1`
debian	bullseye	fixed	`1.3.6.7-1`
debian	sid	fixed	`1.3.6.7-1`

Application impact

Vendor	Product	Versions	Fixed
fedoraproject	389_directory_server	`1.3.5.19`
fedoraproject	389_directory_server	`1.3.6.7`

References

CWEs

CWE-209 CWE-640

Verify integrity in audit chain (admin only). AS-IS.