a2ps 4.13 allows remote attackers to execute arbitrary commands via shell metacharacters in the filename.Referenceshttp://bugs.debian.org/283134http://archives.neohapsis.com/archives/fulldisclosure/2004-08/1026.htmlhttp://marc.info/?l=bugtraq&m=110598355226660&w=2http://www.novell.com/linux/security/advisories/2004_34_xfree86_libs_xshared.htmlhttp://www.securiteam.com/unixfocus/5MP0N2KDPA.htmlhttp://www.securityfocus.com/archive/1/419765/100/0/threadedhttp://sunsolve.sun.com/search/document.do?assetkey=1-26-57649-1&searchclause=http://secunia.com/advisories/12375https://exchange.xforce.ibmcloud.com/vulnerabilities/17127http://www.mandriva.com/security/advisories?name=MDKSA-2004:140http://www.securityfocus.com/bid/11025