freetype: multiple integer overflow vulnerabilities

Multiple integer overflows in FreeType before 2.2 allow remote attackers to cause a denial of service crash and possibly execute arbitrary code via attack vectors related to 1 bdf/bdflib.c, 2 sfnt/ttcmap.c, 3 cff/cffgload.c, and 4 the readlwfn function and a crafted LWFN file in base/ftmac.c. NOT...