New submission from Ned Williamson <[email protected]>:
Hi,
The following program crashes for me using the current Python3.7 master:
```
import plistlib
plistlib.loads(b'\xdd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
b'\xda\x0cw\xb7\x00\x00\x00\x00\x00\x00\x00\xc7\x00'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd6\xd5\x00'
b'\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00'
b'\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00',
fmt=plistlib.FMT_BINARY)
```
The last few lines look like
```
File "/usr/lib/python3.5/plistlib.py", line 728, in _read_object
] = self._read_object(self._object_offsets[o])
File "/usr/lib/python3.5/plistlib.py", line 728, in _read_object
] = self._read_object(self._object_offsets[o])
File "/usr/lib/python3.5/plistlib.py", line 723, in _read_object
key_refs = self._read_refs(s)
File "/usr/lib/python3.5/plistlib.py", line 647, in _read_refs
return self._read_ints(n, self._ref_size)
File "/usr/lib/python3.5/plistlib.py", line 644, in _read_ints
for i in range(0, size * n, size))
RecursionError: maximum recursion depth exceeded in comparison
```
This bug was found using an alpha version of python-fuzz.
----------
messages: 305205
nosy: Ned Williamson
priority: normal
severity: normal
status: open
title: RecursionError in plistlib.loads
type: crash
versions: Python 3.7
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Python tracker <[email protected]>
<https://bugs.python.org/issue31897>
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