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Added range checks to cmap parsing #30
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| @@ -201,13 +201,18 @@ func (f *Font) parseCmap() error { | |||
| return err | |||
| } | |||
| offset = int(u32(f.cmap, offset+4)) | |||
| if offset <= 0 || offset > len(f.cmap) { | |||
| cmapLength := len(f.cmap) | |||
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I'm not sure if this variable is really worth it.
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Do we also need to check offset a couple of lines above this one?
|
Sorry for the late reply. I'm not sure how this slipped off my radar. |
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Added range checks to
func (f *Font) parseCmap()to fix the invalid array accesses caused by the ttf filettf.crashers/9dcbc20080df0e49e3dd90c022eba03aa575c4b6of #17.N.B.: I have signed Google's CLA