Serhiy Storchaka <[email protected]> added the comment:
For example:
a = []
for i in range(22):
a = [a, a]
b = plistlib.dumps(a, fmt=plistlib.FMT_BINARY)
The result is 130 bytes long on patched plistlib. But plistlib.dumps(b) will
expand to a structure consuming almost a gigabyte of memory on unpatched
plistlib. Increasing the level of nesting by one will duplicate memory
consumption, so it is easy to consume all available memory on any computer.
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Python tracker <[email protected]>
<https://bugs.python.org/issue32072>
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