Integer overflow in (1) tif_dirread.c and (2) tif_fax3.c for libtiff 3.5.7 and 3.7.0 allows remote attackers to execute arbitrary code via a TIFF file containing a TIFF_ASCII or TIFF_UNDEFINED directory entry with a -1 entry count, which leads to a heap-based buffer overflow.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9392
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100117
https://exchange.xforce.ibmcloud.com/vulnerabilities/18637
http://www.us-cert.gov/cas/techalerts/TA05-136A.html
http://www.redhat.com/support/errata/RHSA-2005-035.html
http://www.redhat.com/support/errata/RHSA-2005-019.html
http://www.novell.com/linux/security/advisories/2005_01_libtiff_tiff.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:052
http://www.kb.cert.org/vuls/id/125598
http://www.debian.org/security/2004/dsa-617
http://sunsolve.sun.com/search/document.do?assetkey=1-66-201072-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101677-1
http://secunia.com/advisories/13776
http://lists.apple.com/archives/security-announce/2005/May/msg00001.html
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000920