Integer overflow in the gray_render_span function in smooth/ftgrays.c in FreeType before 2.4.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.Referenceshttps://savannah.nongnu.org/bugs/?30263http://www.ubuntu.com/usn/USN-963-1http://support.apple.com/kb/HT4435http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=6305b869d86ff415a33576df6d43729673c66eeehttp://lists.nongnu.org/archive/html/freetype/2010-07/msg00001.htmlhttp://lists.apple.com/archives/security-announce/2010//Nov/msg00000.htmlhttp://marc.info/?l=oss-security&m=127909326909362&w=2http://www.debian.org/security/2010/dsa-2070http://marc.info/?l=oss-security&m=127905701201340&w=2http://securitytracker.com/id?1024266http://www.redhat.com/support/errata/RHSA-2010-0578.htmlhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:137http://www.redhat.com/support/errata/RHSA-2010-0577.htmlhttp://secunia.com/advisories/48951https://bugzilla.redhat.com/show_bug.cgi?id=613167