Vulnerability Details CVE-2016-20021
                In Gentoo Portage before 3.0.47, there is missing PGP validation of executed code: the standalone emerge-webrsync downloads a .gpgsig file but does not perform signature verification. Unless emerge-webrsync is used, Portage is not vulnerable.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.0
                        
                    
                    
                        
                            EPSS Ranking 11.1%
                        
                    
                 
                
                    CVSS Severity
                    
                        
                            CVSS v3 Score 9.8
                        
                    
                    
                 
                
                
                
                    
                
                
                    
                        Products affected by CVE-2016-20021
                        
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:-
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.0.50
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.0.51.22
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.1.1
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.1.3.10
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.1.4.4
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.79
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.80
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.81
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.82
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.83
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.84
                                        
                                     
                                 
                            
                                
                                - 
                                    
                                    
                                        
                                            cpe:2.3:a:gentoo:portage:2.3.85