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17 lines
512 B
Markdown
17 lines
512 B
Markdown
```toml
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[advisory]
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id = "CVE-2017-20004"
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package = "std"
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categories = ["thread-safety"]
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date = "2017-04-29"
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url = "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-20004"
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[versions]
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patched = [">= 1.19.0"]
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unaffected = ["< 1.0.0"]
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```
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# MutexGuard\<Cell\<i32\>\> must not be Sync
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In the standard library in Rust before 1.19.0, there is a synchronization problem in the MutexGuard object. MutexGuards can be used across threads with any types, allowing for memory safety issues through race conditions.
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