Race condition in signal handling of procmail 3.20 and earlier, when running setuid, allows local users to cause a denial of service or gain root privileges by sending a signal while a signal handling routine is already running.Referenceshttps://exchange.xforce.ibmcloud.com/vulnerabilities/6872ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:60.procmail.aschttp://www.securityfocus.com/bid/3071http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000433http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-085.php3http://www.redhat.com/support/errata/RHSA-2001-093.htmlhttp://www.debian.org/security/2001/dsa-083
