(PRS): limit decompressed block size.

Westefal1 · Mar 30, 2019 · 6566278 · 6566278
1 parent b35a80d
commit 6566278
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/ArcFormats/Marble/ImagePRS.cs b/ArcFormats/Marble/ImagePRS.cs
@@ -189,6 +189,7 @@ public void Unpack ()
                     ++shift;
                     if (dst < shift)
                         throw new InvalidFormatException ("Invalid offset value");
+                    length = Math.Min (length, m_output.Length - dst);
                     Binary.CopyOverlapped (m_output, dst-shift, dst, length);
                     dst += length;
                 }