CVE-2019-20503
Publication date 6 March 2020
Last updated 11 July 2025
Ubuntu priority
Cvss 3 Severity Score
Description
usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| chromium-browser | 25.10 questing | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 25.04 plucky | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 24.04 LTS noble | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 22.04 LTS jammy | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | 
                              
                               
                                Fixed 80.0.3987.149-0ubuntu0.18.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | 
                              
                               
                                Fixed 80.0.3987.149-0ubuntu0.16.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 14.04 LTS trusty | Not in release | |
| firefox | 25.10 questing | 
                              
                               
                                Fixed 74.0+build3-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 25.04 plucky | 
                              
                               
                                Fixed 74.0+build3-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 24.04 LTS noble | 
                              
                               
                                Fixed 74.0+build3-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 22.04 LTS jammy | 
                              
                               
                                Fixed 74.0+build3-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | 
                              
                               
                                Fixed 74.0+build3-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 18.04 LTS bionic | 
                              
                               
                                Fixed 74.0+build3-0ubuntu0.18.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | 
                              
                               
                                Fixed 74.0+build3-0ubuntu0.16.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 14.04 LTS trusty | Not in release | |
| libusrsctp | 25.10 questing | 
                              
                               
                                Needs evaluation 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 25.04 plucky | 
                              
                               
                                Needs evaluation 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 24.04 LTS noble | 
                              
                               
                                Needs evaluation 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 22.04 LTS jammy | 
                              
                               
                                Needs evaluation 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | 
                              
                               
                                Needs evaluation 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| thunderbird | 25.10 questing | 
                              
                               
                                Fixed 1:68.6.0+build2-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 25.04 plucky | 
                              
                               
                                Fixed 1:68.6.0+build2-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 24.04 LTS noble | 
                              
                               
                                Fixed 1:68.6.0+build2-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 22.04 LTS jammy | 
                              
                               
                                Fixed 1:68.6.0+build2-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 20.04 LTS focal | 
                              
                               
                                Fixed 1:68.6.0+build2-0ubuntu1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 18.04 LTS bionic | 
                              
                               
                                Fixed 1:68.7.0+build1-0ubuntu0.18.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | 
                              
                               
                                Fixed 1:68.7.0+build1-0ubuntu0.16.04.2 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 14.04 LTS trusty | Not in release | 
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | None | 
| User interaction | Required | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | High | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-4328-1
 - Thunderbird vulnerabilities
 - 13 April 2020
 - USN-4299-1
 - Firefox vulnerabilities
 - 11 March 2020
 - USN-4335-1
 - Thunderbird vulnerabilities
 - 21 April 2020