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20 lines
744 B
Markdown
20 lines
744 B
Markdown
```toml
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[advisory]
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id = "RUSTSEC-2020-0107"
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package = "hashconsing"
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aliases = ["CVE-2020-36215", "GHSA-rw2c-c256-3r53"]
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cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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date = "2020-11-10"
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url = "https://github.com/AdrienChampion/hashconsing/issues/1"
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categories = ["memory-corruption", "thread-safety"]
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keywords = ["concurrency"]
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[versions]
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patched = [">= 1.1.0"]
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```
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# hashconsing's HConsed lacks Send/Sync bound for its Send/Sync trait.
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Affected versions of `hashconsing` implements `Send`/`Sync` for its `HConsed` type without restricting it to `Send`able types and `Sync`able types.
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This allows non-`Sync` types such as `Cell` to be shared across threads leading to undefined behavior and memory corruption in concurrent programs.
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