NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP
Published Jul 20, 2017
5.9
MEDIUMCVSS 3.0
EPSS 0.88%
Description
NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP. The users.ldap NixOS module implements user authentication against LDAP servers via a PAM module. It was found that if TLS is enabled to connect to the LDAP server with users.ldap.useTLS, peer verification will be unconditionally disabled in /etc/ldap.conf.
Affected products
No data.
- ≤ 17.03
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.88% (0.00875) | 57.52th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.88% (0.00875) | 57.41th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00159) | 52.90th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.16% (0.00159) | 51.89th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00206) | 56.73th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- http://openwall.com/lists/oss-security/2017/07/20/1 x_refsource_CONFIRMMailing ListMitigationPatchThird Party Advisory
- https://github.com/NixOS/nixpkgs/issues/27506 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://groups.google.com/forum/#%21topic/nix-security-announce/qrDU0KH_ZRk x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2017/07/20/1 | x_refsource_CONFIRMMailing ListMitigationPatchThird Party Advisory | |
| https://github.com/NixOS/nixpkgs/issues/27506 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://groups.google.com/forum/#%21topic/nix-security-announce/qrDU0KH_ZRk | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.