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Invalid memory access in lz5 v2.0(lz5_compress) #18
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kky0h
changed the title
NULL pointer dereference in lz5 v2.0(lz5_compress)
Invalid memory access in lz5 v2.0(lz5_compress)
Sep 13, 2018
Thanks for reporting. I tried to reproduce your issue with the latest Lizard 1.0 at 02491c7. Please try the latest commit. If you will find an issue please also report your gcc/clang version and used parameters. My options were: |
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Hello.
I found a invalid memory access in LZ5 v2.0.
Please confirm.
Thanks.
Summary
OS: ubuntu-14.04-64bit
version: Lz5 2.0
POC Download: invalid memory access
test code: examples/blockStreaming_lineByLine.c,compile with ASan.
details:
It seems 'match' or 'base' (lz5_parse_fastsmall.h:90) access invalid memory in some cases.
It may cause a crash or denial of service.
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