The fn_show_postinst function in Gentoo webapp-config before 1.10-r14 allows local users to overwrite arbitrary files via a symlink attack on the postinst.txt temporary file.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.002
                        
                    
                    
                        
                            EPSS Ranking 45.7%