rustsec-2020-0138
Vulnerability from osv_rustsec
Published
2020-11-10 12:00
Modified
2023-06-13 13:10
Summary
ReaderResult should be bounded by Sync
Details
Affected versions of this crate implements Sync for ReaderResult<T, E> with the trait bound T: Send, E: Send.
Since matching on the public enum ReaderResult<T, E> provides access to &T & &E,
allowing data race to a non-Sync type T or E.
This can result in a memory corruption when multiple threads concurrently access &T or &E.
Suggested fix for the bug is change the trait bounds imposed on T & E to be T: Sync, E: Sync.
{
"affected": [
{
"database_specific": {
"categories": [
"memory-corruption",
"thread-safety"
],
"cvss": "CVSS:3.1/AV:N/AC:H/PR:N/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": "lexer",
"purl": "pkg:cargo/lexer"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-36458",
"GHSA-f997-8gxg-r354"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of this crate implements `Sync` for `ReaderResult\u003cT, E\u003e` with the trait bound `T: Send, E: Send`.\n\nSince matching on the public enum `ReaderResult\u003cT, E\u003e` provides access to `\u0026T` \u0026 `\u0026E`,\nallowing data race to a non-Sync type `T` or `E`.\nThis can result in a memory corruption when multiple threads concurrently access `\u0026T` or `\u0026E`.\n\nSuggested fix for the bug is change the trait bounds imposed on `T` \u0026 `E` to be `T: Sync, E: Sync`.",
"id": "RUSTSEC-2020-0138",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-11-10T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/lexer"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0138.html"
},
{
"type": "REPORT",
"url": "https://gitlab.com/nathanfaucett/rs-lexer/-/issues/2"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "ReaderResult should be bounded by Sync"
}
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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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