Out-of-bounds Read Vulnerability in FreeType's tt_cmap4_validate Function

CVE-2014-9663 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

The tt_cmap4_validate function in sfnt/ttcmap.c in FreeType before 2.5.4 validates a certain length field before that field's value is completely calculated, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted cmap SFNT table.

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