Vulnerability Details CVE-2021-29627
                In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.011
                        
                    
                    
                        
                            EPSS Ranking 77.0%
                        
                    
                 
                
                    CVSS Severity
                    
                        
                            CVSS v3 Score 7.8
                        
                    
                    
                        
                            CVSS v2 Score 7.2
                        
                    
                 
                
                
                
                    
                
                
                    
                        Products affected by CVE-2021-29627
                        
                            
                                
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                                            cpe:2.3:o:freebsd:freebsd:12.0
                                        
                                     
                                 
                            
                                
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                                            cpe:2.3:o:freebsd:freebsd:12.1
                                        
                                     
                                 
                            
                                
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                                            cpe:2.3:o:freebsd:freebsd:12.2
                                        
                                     
                                 
                            
                                
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                                            cpe:2.3:o:freebsd:freebsd:13.0