The tt_sbit_decoder_init function in sfnt/ttsbit.c in FreeType before 2.5.4 proceeds with a count-to-size association without restricting the count value, which allows remote attackers to cause a denial of service (integer overflow and out-of-bounds read) or possibly have unspecified other impact via a crafted embedded bitmap.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | 2019.010.20098 and earlier, 2019.010.20098 and earlier, 2017.011.30127 and earlier version, and 2015.006.30482 and earlier versions |