RUSTSEC-2019-0017

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Source

https://rustsec.org/advisories/RUSTSEC-2019-0017

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2019-0017.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2019-0017

Aliases

Published

2019-09-01T12:00:00Z

Modified

2023-11-08T04:01:16.284220Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

Panic during initialization of Lazy<T> might trigger undefined behavior

Details

If during the first dereference of Lazy<T> the initialization function panics, subsequent dereferences will execute std::hints::unreachable_unchecked.

Applications with panic = "abort" are not affected, as there will be no subsequent dereferences.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / once_cell

Package

Name: once_cell; View open source insights on deps.dev
Purl: pkg:cargo/once_cell

Affected ranges

Type: SEMVER
Events: Introduced

0.2.5

Fixed

1.0.1

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [
            "once_cell::sync::Lazy::deref",
            "once_cell::sync::Lazy::force",
            "once_cell::unsync::Lazy::deref",
            "once_cell::unsync::Lazy::force"
        ],
        "arch": []
    }
}

Database specific

cvss

"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"

informational

null