CVE-2022-23639: Crossbeam utils Crossbeam-utils Unsoundness Of AtomicCell<{i,u}64> Arithmetics Vulnerability
HIGHCVE-2022-23639 is a HIGH (CVSS 8.1) crossbeam-utils unsoundness of atomiccell<{i,u}64> arithmetics vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Crossbeam utils libraries in the crates.io ecosystem. The issue involves crossbeam-utils unsoundness of atomiccell<{i,u}64> arithmetics on 32-bit targets that support atomic{i,u}64. Remediation is available by upgrading affected packages to version 0.8.7.
CVE-2022-23639 at a Glance
Security Impact
CVSS: 8.1
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2022-23639
To remediate this vulnerability, upgrade all affected Crossbeam utils dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade crossbeam-utils to 0.8.7Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for crossbeam-utilsHow to Check if You Are Affected
To determine whether your application is affected by CVE-2022-23639, inspect your project dependencies for Crossbeam utils:
inspect dependencies for crossbeam-utilsAnalyze the terminal output to locate any version of Crossbeam utils in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.8.7), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. In Crossbeam utils, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2022-23639 Affected Crossbeam utils Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
crossbeam-utils
|
crates.io |
< 0.8.7
|
0.8.7
|
References
Frequently Asked Questions
What is CVE-2022-23639?
Which Crossbeam utils versions are affected?
What version fixes CVE-2022-23639?
Is crossbeam-utils affected?
What is the CVSS score of CVE-2022-23639?
What CWE is associated with CVE-2022-23639?
How can I check crates.io dependencies for CVE-2022-23639?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-qc84-gqf4-9926",
"modified" : "2025-02-04T17:30:19Z",
"published" : "2022-02-16T22:36:21Z",
"aliases" : [ "CVE-2022-23639" ],
"summary" : "crossbeam-utils Unsoundness of AtomicCell<{i,u}64> arithmetics on 32-bit targets that support Atomic{I,U}64",
"details" : "### Impact\n\nThe affected versions of this crate incorrectly assumed that the alignment of `{i,u}64` was always the same as `Atomic{I,U}64`. \n\nHowever, the alignment of `{i,u}64` on a 32-bit target can be smaller than `Atomic{I,U}64`.\n\nThis can cause the following problems:\n\n- Unaligned memory accesses\n- Data race\n\nCrates using `fetch_*` methods with `AtomicCell<{i,u}64>` are affected by this issue.\n\n32-bit targets without `Atomic{I,U}64` and 64-bit targets are not affected by this issue.\n32-bit targets with `Atomic{I,U}64` and `{i,u}64` have the same alignment are also not affected by this issue.\n\nThe following is a complete list of the builtin targets that may be affected. (last update: nightly-2022-02-11)\n\n- armv7-apple-ios (tier 3)\n- armv7s-apple-ios (tier 3)\n- i386-apple-ios (tier 3)\n- i586-unknown-linux-gnu\n- i586-unknown-linux-musl\n- i686-apple-darwin (tier 3)\n- i686-linux-android\n- i686-unknown-freebsd\n- i686-unknown-haiku (tier 3)\n- i686-unknown-linux-gnu\n- i686-unknown-linux-musl\n- i686-unknown-netbsd (tier 3)\n- i686-unknown-openbsd (tier 3)\n- i686-wrs-vxworks (tier 3)\n\n([script to get list](https://gist.github.com/taiki-e/3c7891e8c5f5e0cbcb44d7396aabfe10))\n\n### Patches\n\nThis has been fixed in crossbeam-utils 0.8.7.\n\nAffected 0.8.x releases have been yanked.\n\n### References\n\nhttps://github.com/crossbeam-rs/crossbeam/pull/781 \n\n### License\n\nThis advisory is in the public domain.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "crates.io",
"name" : "crossbeam-utils"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.8.7"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-23639"
}, {
"type" : "WEB",
"url" : "https://github.com/crossbeam-rs/crossbeam/pull/781"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/crossbeam-rs/crossbeam"
}, {
"type" : "WEB",
"url" : "https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7"
}, {
"type" : "WEB",
"url" : "https://rustsec.org/advisories/RUSTSEC-2022-0041.html"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-362" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2022-02-16T22:36:21Z",
"nvd_published_at" : "2022-02-15T19:15:00Z"
}
}