The OpenBlob function in blob.c in GraphicsMagick before 1.3.24 and ImageMagick allows remote attackers to execute arbitrary code via a | (pipe) character at the start of a filename.Referenceshttps://access.redhat.com/errata/RHSA-2016:1237http://www.securitytracker.com/id/1035985http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00021.htmlhttp://hg.code.sf.net/p/graphicsmagick/code/rev/ae3928faa858http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00011.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00008.htmlhttp://www.securitytracker.com/id/1035984http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlhttp://www.securityfocus.com/bid/90938http://www.openwall.com/lists/oss-security/2016/05/30/1http://www.ubuntu.com/usn/USN-2990-1http://www.debian.org/security/2016/dsa-3591http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.397749http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00032.htmlhttp://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlhttp://www.debian.org/security/2016/dsa-3746http://www.openwall.com/lists/oss-security/2016/05/29/7http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00030.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00047.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00009.htmlhttp://git.imagemagick.org/repos/ImageMagick/commit/40639d173aa8c76b850d625c630b711fee4dcfb8http://hg.code.sf.net/p/graphicsmagick/code/file/41876934e762/ChangeLog