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20 lines
1.1 KiB
TOML
20 lines
1.1 KiB
TOML
[advisory]
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id = "RUSTSEC-2019-0010"
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package = "libflate"
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date = "2019-07-04"
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title = "MultiDecoder::read() drops uninitialized memory of arbitrary type on panic in client code"
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description = """
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Affected versions of libflate have set a field of an internal structure with a generic type to an uninitialized value in `MultiDecoder::read()` and reverted it to the original value after the function completed. However, execution of `MultiDecoder::read()` could be interrupted by a panic in caller-supplied `Read` implementation. This would cause `drop()` to be called on uninitialized memory of a generic type implementing `Read`.
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This is equivalent to a use-after-free vulnerability and could allow an attacker to gain arbitrary code execution.
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The flaw was corrected by aborting immediately instead of unwinding the stack in case of panic within `MultiDecoder::read()`. The issue was discovered and fixed by Shnatsel.
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"""
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patched_versions = [">= 0.1.25"]
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unaffected_versions = ["< 0.1.14"]
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url = "https://github.com/sile/libflate/issues/35"
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keywords = ["drop", "use-after-free"]
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[affected.functions]
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"libflate::gzip::MultiDecoder::read" = ["< 0.1.25, >= 0.1.14"]
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