I temporarily fixed my own installation of cnf by changing line 89 of
/usr/lib/command-not-found from:
if len(args) == 1:
to
if len(args) == 1 and len(args[0])<100:
That means cnf will not do anything for commands longer than 100
characters. But seriously, can anyone tell me a command that has 100
characters?
This bug can be used by an attacker to bring down a system to its knees.
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https://bugs.launchpad.net/bugs/576590
Title:
Command not found consumes lots of memory and CPU for longer input
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