The libtiff is vulnerable denial of service (DoS). An attacker could create a carefully crafted TIFF file in such a way that it was possible to cause an application linked with libtiff to crash or possibly execute arbitrary code.
ftp://patches.sgi.com/support/free/security/advisories/20060801-01-P
ftp://patches.sgi.com/support/free/security/advisories/20060801-01-P
ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc
ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc
lwn.net/Alerts/194228/
secunia.com/advisories/21274
secunia.com/advisories/21290
secunia.com/advisories/21304
secunia.com/advisories/21319
secunia.com/advisories/21334
secunia.com/advisories/21338
secunia.com/advisories/21346
secunia.com/advisories/21370
secunia.com/advisories/21392
secunia.com/advisories/21501
secunia.com/advisories/21537
secunia.com/advisories/21598
secunia.com/advisories/21632
secunia.com/advisories/22036
secunia.com/advisories/27181
secunia.com/advisories/27222
secunia.com/advisories/27832
securitytracker.com/id?1016628
slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.536600
sunsolve.sun.com/search/document.do?assetkey=1-26-103160-1
sunsolve.sun.com/search/document.do?assetkey=1-66-201331-1
support.avaya.com/elmodocs2/security/ASA-2006-166.htm
www.debian.org/security/2006/dsa-1137
www.gentoo.org/security/en/glsa/glsa-200608-07.xml
www.mandriva.com/security/advisories?name=MDKSA-2006:136
www.mandriva.com/security/advisories?name=MDKSA-2006:137
www.novell.com/linux/security/advisories/2006_44_libtiff.html
www.redhat.com/security/updates/classification/#important
www.redhat.com/support/errata/RHSA-2006-0603.html
www.redhat.com/support/errata/RHSA-2006-0648.html
www.securityfocus.com/bid/19284
www.ubuntu.com/usn/usn-330-1
www.vupen.com/english/advisories/2006/3105
www.vupen.com/english/advisories/2007/3486
www.vupen.com/english/advisories/2007/4034
access.redhat.com/errata/RHSA-2006:0603
issues.rpath.com/browse/RPL-558
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10639