rustsec-2020-0101
Vulnerability from osv_rustsec
Published
2020-12-22 12:00
Modified
2023-06-13 13:10
Summary
conquer-once's OnceCell lacks Send bound for its Sync trait.
Details
Affected versions of conquer-once implements Sync for its OnceCell type
without restricting it to Sendable types.
This allows non-Send but Sync types such as MutexGuard to be sent across
threads leading to undefined behavior and memory corruption in concurrent
programs.
The issue was fixed by adding a Send constraint to OnceCell.
{
"affected": [
{
"database_specific": {
"categories": [
"memory-corruption",
"thread-safety"
],
"cvss": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "conquer-once",
"purl": "pkg:cargo/conquer-once"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
},
{
"fixed": "0.3.2"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-36208",
"GHSA-3jc5-5hc5-33gj"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of `conquer-once` implements `Sync` for its `OnceCell` type\nwithout restricting it to `Send`able types.\n\nThis allows non-`Send` but `Sync` types such as `MutexGuard` to be sent across\nthreads leading to undefined behavior and memory corruption in concurrent\nprograms.\n\nThe issue was fixed by adding a `Send` constraint to `OnceCell`.",
"id": "RUSTSEC-2020-0101",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-12-22T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/conquer-once"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0101.html"
},
{
"type": "REPORT",
"url": "https://github.com/oliver-giersch/conquer-once/issues/3"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "conquer-once\u0027s OnceCell lacks Send bound for its Sync trait."
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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