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Add in protection for the Lime Layer being unable to read the header.

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Mike Auty
2018-12-12 23:42:31 +00:00
parent 8acbe8bba3
commit b148305f76
1 changed files with 4 additions and 1 deletions
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volatility/framework/layers/lime.py
+4 -1
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@@ -67,7 +67,10 @@ class LimeLayer(segmented.SegmentedLayer):
def _check_header(cls,
base_layer: interfaces.layers.DataLayerInterface,
offset: int = 0) -> typing.Tuple[int, int]:
header_data = base_layer.read(offset, cls._header_struct.size)
try:
header_data = base_layer.read(offset, cls._header_struct.size)
except exceptions.InvalidAddressException:
raise LimeFormatException("Offset 0x{:0x} does not exist within the base layer".format(offset))
(magic, version, start, end, reserved) = cls._header_struct.unpack(header_data)
if magic != cls.MAGIC:
raise LimeFormatException("bad magic 0x{:x} at file offset 0x{:x}".format(magic, offset))