CVE-2017-11501

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.

Date published : 2017-07-20

http://openwall.com/lists/oss-security/2017/07/20/1

https://github.com/NixOS/nixpkgs/issues/27506