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fixing a possible write beyond the array boundary. #1028

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fixing a possible write beyond the array boundary. #1028

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ihsinme
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@ihsinme ihsinme commented Mar 9, 2022

If you don't initialize array buf and use strlen to determine the zero length, there is a possibility that the value of function memset will go beyond array buf. This will happen if there are no zeros in the declared array.

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fixing a possible write beyond the array boundary.
e4e3bee 
If you don't initialize array `buf` and use `strlen` to determine the zero length, there is a possibility that the value of function `memset` will go beyond array `buf`. This will happen if there are no zeros in the declared array.
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ihsinme commented Apr 5, 2022

good afternoon.
any news on this PR?

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On line 262 it also calls strcpy(buf,rep); with seemingly no bounds check? If rep is larger than 1024 then it’ll overflow the buffer. Not an immediate problem as strrep is currently only called with constants and localized messages, but if it ever ends up being called with user input this is catastrophic.

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