CVE-2019-1020014
Publication date 29 July 2019
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
docker-credential-helpers before 0.6.3 has a double free in the List functions.
From the Ubuntu Security Team
Jasiel Spelman discovered that a double free existed in docker-credential-helpers. A local attacker could use this to cause a denial of service (crash) or possibly execute arbitrary code.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| golang-github-docker-docker-credential-helpers | ||
| 22.04 LTS jammy | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 18.04 LTS bionic | 
                              
                               
                                Fixed 0.5.0-2ubuntu0.1+esm1 
                                
                                   
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| docker.io | ||
| 22.04 LTS jammy | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 18.04 LTS bionic | 
                              
                               
                                Fixed 18.09.7-0ubuntu1~18.04.4 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | 
                              
                               
                                Fixed 18.09.7-0ubuntu1~16.04.5 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 14.04 LTS trusty | Not in release | 
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| Package | Patch details | 
|---|---|
| golang-github-docker-docker-credential-helpers | 
                        
  | 
                    
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Local | 
| Attack complexity | Low | 
| Privileges required | Low | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | High | 
| Integrity impact | None | 
| Availability impact | None | 
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | 
References
Related Ubuntu Security Notices (USN)
- USN-4103-1
 - docker-credential-helpers vulnerability
 - 19 August 2019
 - USN-4103-2
 - Docker vulnerability
 - 19 August 2019
 - USN-4856-1
 - docker-credential-helpers vulnerability
 - 15 March 2021