CVE-2017-9287
Publication date 29 May 2017
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| openldap | ||
| 16.04 LTS xenial | 
                              
                               
                                Fixed 2.4.42+dfsg-2ubuntu3.2 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 14.04 LTS trusty | 
                              
                               
                                Fixed 2.4.31-1+nmu2ubuntu8.4 
                                
                               
                             |      
                          
                            
                          
                        
                      
Patch details
| Package | Patch details | 
|---|---|
| openldap | 
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | Low | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | High | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-3307-2
 - OpenLDAP vulnerability
 - 19 July 2017
 - USN-3307-1
 - OpenLDAP vulnerability
 - 1 June 2017