ubuntu-cve-2022-23639
Vulnerability from osv_ubuntu
Published
2022-02-15 19:15
Modified
2026-05-20 14:55
Summary
Details
crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of {i,u}64 was always the same as Atomic{I,U}64. However, the alignment of {i,u}64 on a 32-bit target can be smaller than Atomic{I,U}64. This can cause unaligned memory accesses and data race. Crates using fetch_* methods with AtomicCell<{i,u}64> are affected by this issue. 32-bit targets without Atomic{I,U}64 and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.
Severity
8.1 (High)
8.1 (High)
N/A (UNKNOWN)
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"purl": "pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu3?arch=source\u0026distro=noble"
},
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{
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}
],
"type": "ECOSYSTEM"
}
],
"versions": [
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"1:115.4.1+build1-0ubuntu1",
"1:115.4.3+build1-0ubuntu1",
"1:115.5.0+build1-0ubuntu1",
"1:115.5.1+build1-0ubuntu1",
"1:115.5.2+build2-0ubuntu1",
"1:115.6.0+build1-0ubuntu1",
"1:115.6.0+build2-0ubuntu1",
"1:115.6.1+build1-0ubuntu1",
"1:115.8.0+build1-0ubuntu1",
"1:115.8.1+build1+snap2",
"1:115.8.1+build1+snap3",
"2:1snap1-0ubuntu1",
"2:1snap1-0ubuntu3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "thunderbird",
"binary_version": "2:1snap1-0ubuntu3"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "thunderbird",
"purl": "pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu3?arch=source\u0026distro=questing"
},
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"type": "ECOSYSTEM"
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],
"versions": [
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},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "thunderbird",
"binary_version": "2:1snap1-0ubuntu5"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "thunderbird",
"purl": "pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu5?arch=source\u0026distro=resolute"
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"2:1snap1-0ubuntu5"
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}
],
"aliases": [],
"details": "crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of `{i,u}64` was always the same as `Atomic{I,U}64`. However, the alignment of `{i,u}64` on a 32-bit target can be smaller than `Atomic{I,U}64`. This can cause unaligned memory accesses and data race. Crates using `fetch_*` methods with `AtomicCell\u003c{i,u}64\u003e` are affected by this issue. 32-bit targets without `Atomic{I,U}64` and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.",
"id": "UBUNTU-CVE-2022-23639",
"modified": "2026-05-20T14:55:49Z",
"published": "2022-02-15T19:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-23639"
},
{
"type": "REPORT",
"url": "https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7"
},
{
"type": "REPORT",
"url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926"
},
{
"type": "REPORT",
"url": "https://github.com/crossbeam-rs/crossbeam/pull/781"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23639"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-23639"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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