Buffer overflow in the FileReadGIF function in tkImgGIF.c for Tk Toolkit 8.4.12 and earlier, and 8.3.5 and earlier, allows user-assisted attackers to cause a denial of service (segmentation fault) via an animated GIF in which the first subimage is smaller than a subsequent subimage, which triggers the overflow in the ReadImage function, a different vulnerability than CVE-2007-5137.
secunia.com/advisories/27207
secunia.com/advisories/27295
secunia.com/advisories/27801
secunia.com/advisories/27806
secunia.com/advisories/29070
secunia.com/advisories/30129
secunia.com/advisories/30535
secunia.com/advisories/34297
sunsolve.sun.com/search/document.do?assetkey=1-26-237465-1
www.attrition.org/pipermail/vim/2007-October/001826.html
www.debian.org/security/2007/dsa-1415
www.debian.org/security/2007/dsa-1416
www.debian.org/security/2009/dsa-1743
www.mandriva.com/security/advisories?name=MDKSA-2007:200
www.redhat.com/support/errata/RHSA-2008-0134.html
www.redhat.com/support/errata/RHSA-2008-0135.html
www.securityfocus.com/archive/1/493080/100/0/threaded
www.securityfocus.com/bid/26056
www.ubuntu.com/usn/usn-529-1
www.vmware.com/security/advisories/VMSA-2008-0009.html
www.vupen.com/english/advisories/2008/1456/references
www.vupen.com/english/advisories/2008/1744
exchange.xforce.ibmcloud.com/vulnerabilities/37189
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9480
sourceforge.net/tracker/?func=detail&atid=112997&aid=1458234&group_id=12997