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(TgfFormat): additional input sanity checks.

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morkt
2015-06-01 00:51:54 +04:00
parent 54ae9e191e
commit c635d2263f
1 changed files with 1 additions and 1 deletions
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2
ArcFormats/ImageTGF.cs
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@@ -60,7 +60,7 @@ namespace GameRes.Formats.Tactics
return null; return null;
uint length = LittleEndian.ToUInt32 (header, 0); uint length = LittleEndian.ToUInt32 (header, 0);
int chunk_size = LittleEndian.ToInt32 (header, 4); int chunk_size = LittleEndian.ToInt32 (header, 4);
if (length > 0xffffff) if (length > 0xffffff || chunk_size <= 0 || length < chunk_size)
return null; return null;
using (var reader = new Reader (stream, (uint)Math.Max (0x20, chunk_size+2), chunk_size)) using (var reader = new Reader (stream, (uint)Math.Max (0x20, chunk_size+2), chunk_size))
{ {