RUSTSEC-2020-0052

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Source

https://rustsec.org/advisories/RUSTSEC-2020-0052

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2020-0052.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2020-0052

Aliases

Published

2020-06-26T12:00:00Z

Modified

2023-11-01T04:52:02.525278Z

Summary

Undefined Behavior in bounded channel

Details

The affected version of this crate's the bounded channel incorrectly assumes that Vec::from_iter has allocated capacity that same as the number of iterator elements. Vec::from_iter does not actually guarantee that and may allocate extra memory. The destructor of the bounded channel reconstructs Vec from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when Vec::from_iter has allocated different sizes with the number of iterator elements.

References

Affected packages

crates.io / crossbeam-channel

Package

Name: crossbeam-channel; View open source insights on deps.dev
Purl: pkg:cargo/crossbeam-channel

Affected ranges

Type: SEMVER
Events: Introduced

0.4.3

Fixed

0.4.4

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [],
        "arch": []
    }
}

Database specific

{
    "cvss": null,
    "informational": null,
    "categories": [
        "memory-corruption"
    ]
}