ImageMagick 6.7.5-7 and earlier allows remote attackers to cause a denial of service (infinite loop and hang) via a crafted image whose IFD contains IOP tags that all reference the beginning of the IDF.
rhn.redhat.com/errata/RHSA-2012-0544.html
rhn.redhat.com/errata/RHSA-2012-0545.html
secunia.com/advisories/47926
secunia.com/advisories/48247
secunia.com/advisories/48259
secunia.com/advisories/49043
secunia.com/advisories/49063
secunia.com/advisories/49068
ubuntu.com/usn/usn-1435-1
www.cert.fi/en/reports/2012/vulnerability595210.html
www.debian.org/security/2012/dsa-2427
www.gentoo.org/security/en/glsa/glsa-201203-09.xml
www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=20286
www.osvdb.org/79003
www.securityfocus.com/bid/51957
www.securitytracker.com/id?1027032