Comment # 3 on bug 1131686 from
Yes it comes from opensuse official repo:

zypper lr -u

# | Alias           | Name            | Enabled | GPG Check | Refresh | URI   
1 | NON-OSS         | NON-OSS         | Yes     | (r ) Yes  | No      |
http://download.opensuse.org/distribution/leap/15.0/repo/non-oss/               
2 | OSS             | OSS             | Yes     | (r ) Yes  | No      |
http://download.opensuse.org/distribution/leap/15.0/repo/oss/                   
3 | UPDATES-NON-OSS | UPDATES-NON-OSS | Yes     | (r ) Yes  | Yes     |
http://download.opensuse.org/update/leap/15.0/non-oss                           
4 | UPDATES-OSS     | UPDATES-OSS     | Yes     | (r ) Yes  | Yes     |
http://download.opensuse.org/update/leap/15.0/oss                               

zypper if libldb1
Loading repository data...
Reading installed packages...

Information for package libldb1:
--------------------------------
Repository     : UPDATES-OSS                                      
Name           : libldb1                                          
Version        : 1.2.3-lp150.7.2                                  
Arch           : x86_64                                           
Vendor         : openSUSE                                         
Installed Size : 343.2 KiB                                        
Installed      : Yes                                              
Status         : out-of-date (version 1.2.3-lp150.2.3.1 installed)
Source package : ldb-1.2.3-lp150.7.2.src                          
Summary        : An LDAP-like embedded database                   
Description    :                                                  
    LDB is an LDAP-like embedded database.

    This package includes the ldb1 library.


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