ghsa-fg7r-2g4j-5cgr
Vulnerability from github
Published
2022-01-06 22:04
Modified
2023-06-13 22:01
Severity ?
VLAI Severity ?
Summary
Race Condition in tokio
Details
If a tokio::sync::oneshot channel is closed (via the oneshot::Receiver::close method), a data race may occur if the oneshot::Sender::send method is called while the corresponding oneshot::Receiver is awaited or calling try_recv.
When these methods are called concurrently on a closed channel, the two halves of the channel can concurrently access a shared memory location, resulting in a data race. This has been observed to cause memory corruption.
Note that the race only occurs when both halves of the channel are used after the Receiver half has called close. Code where close is not used, or where the Receiver is not awaited and try_recv is not called after calling close, is not affected.
{ "affected": [ { "package": { "ecosystem": "crates.io", "name": "tokio" }, "ranges": [ { "events": [ { "introduced": "0.1.14" }, { "fixed": "1.8.4" } ], "type": "ECOSYSTEM" } ] }, { "package": { "ecosystem": "crates.io", "name": "tokio" }, "ranges": [ { "events": [ { "introduced": "1.9.0" }, { "fixed": "1.13.1" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2021-45710" ], "database_specific": { "cwe_ids": [ "CWE-362" ], "github_reviewed": true, "github_reviewed_at": "2022-01-05T22:43:36Z", "nvd_published_at": "2021-12-27T00:15:00Z", "severity": "HIGH" }, "details": "If a tokio::sync::oneshot channel is closed (via the oneshot::Receiver::close method), a data race may occur if the oneshot::Sender::send method is called while the corresponding oneshot::Receiver is awaited or calling try_recv.\n\nWhen these methods are called concurrently on a closed channel, the two halves of the channel can concurrently access a shared memory location, resulting in a data race. This has been observed to cause memory corruption.\n\nNote that the race only occurs when both halves of the channel are used after the Receiver half has called close. Code where close is not used, or where the Receiver is not awaited and try_recv is not called after calling close, is not affected.\n\n", "id": "GHSA-fg7r-2g4j-5cgr", "modified": "2023-06-13T22:01:00Z", "published": "2022-01-06T22:04:37Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45710" }, { "type": "WEB", "url": "https://github.com/tokio-rs/tokio/issues/4225" }, { "type": "PACKAGE", "url": "https://github.com/tokio-rs/tokio" }, { "type": "WEB", "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0124.md" }, { "type": "WEB", "url": "https://rustsec.org/advisories/RUSTSEC-2021-0124.html" } ], "schema_version": "1.4.0", "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": "Race Condition in tokio" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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