CVE-2016-1954
Publication date 8 March 2016
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
The nsCSPContext::SendReports function in dom/security/nsCSPContext.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not prevent use of a non-HTTP report-uri for a Content Security Policy (CSP) violation report, which allows remote attackers to cause a denial of service (data overwrite) or possibly gain privileges by specifying a URL of a local file.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| firefox | 16.04 LTS xenial | 
                              
                               
                                Not affected 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 14.04 LTS trusty | 
                              
                               
                                Fixed 45.0+build2-0ubuntu0.14.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| thunderbird | 16.04 LTS xenial | 
                              
                               
                                Fixed 1:38.7.2+build1-0ubuntu0.16.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      
| 14.04 LTS trusty | 
                              
                               
                                Fixed 1:38.7.2+build1-0ubuntu0.14.04.1 
                                
                               
                             |      
                          
                            
                          
                        
                      |
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | None | 
| User interaction | Required | 
| Scope | Unchanged | 
| Confidentiality | High | 
| Integrity impact | High | 
| Availability impact | High | 
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-2917-1
 - Firefox vulnerabilities
 - 9 March 2016
 - USN-2934-1
 - Thunderbird vulnerabilities
 - 27 April 2016