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There is a stack-based buffer overflow in the ReadNextCell function of mat5.c(at 1001) #129
Comments
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No need to report fuzzing issues since matio is on OSS-Fuzz with still about 40 open issues. Instead of v1.5.17, please rerun the test against current master and reopen if the issue is still reproducible. |
Yes, I just use 'git clone' to fetch the current master of the matio,the issue is still reproducible.
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Should be fixed now. |
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CVE-2019-20018 has been assigned for this issue. |


A crafted input will lead to crash in mat5.c at matio 1.5.17.
Triggered by
./matdump POC
Poc
003-stackoverflow-ReadNextCell-mat51001
The ASAN information is as follows:
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