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Author serhiy.storchaka
Recipients larry, ned.deily, ronaldoussoren, serhiy.storchaka
Date 2017-12-26.11:03:37
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Marked as misclassified Yes
Message-id <>
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.
Date User Action Args
2017-12-26 11:03:38serhiy.storchakasetrecipients: + serhiy.storchaka, ronaldoussoren, larry, ned.deily
2017-12-26 11:03:38serhiy.storchakasetmessageid: <>
2017-12-26 11:03:38serhiy.storchakalinkissue32072 messages
2017-12-26 11:03:37serhiy.storchakacreate