Comments (6)
Thank you!
Now that this issue is fixed, I'm attaching the full details below.
Steps to reproduce the issue:
git clone https://github.com/Shnatsel/libflate-repr
cd libflate-repr
export ASAN_OPTIONS=detect_odr_violation=0
RUSTFLAGS="-Z sanitizer=address" cargo +nightly build
target/debug/zlib < /path/to/malformed/input
The cargo.toml in inflate_repr repository points to my own fork of libflate, so this issue should remain reproducible in this setup even after the fix.
The inputs triggering the bug can be obtained from https://github.com/sile/libflate/tree/master/data/issues_16
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This does not seem to pose a security issue after all; at least, I couldn't get uninitialized memory contents to influence the output. It can crash though, so this is still an opportunity for denial of service.
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Thank you for your information.
I will confirm the detail within a few weeks.
from libflate.
It has been three weeks since the report. Any updates?
from libflate.
Sorry for the late reply.
I fixed the bug at the commit e263e83.
from libflate.
Thanks a lot!
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