FKIE_CVE-2022-23639

Vulnerability from fkie_nvd - Published: 2022-02-15 19:15 - Updated: 2026-06-17 04:30
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/crossbeam-rs/crossbeam/pull/781Issue Tracking, Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/crossbeam-rs/crossbeam/pull/781Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926Exploit, Third Party Advisory
Impacted products
Vendor Product Version
crossbeam_project crossbeam *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "crossbeam",
          "vendor": "crossbeam-rs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.8.7"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:rust:*:*",
              "matchCriteriaId": "7C3287EB-A254-4840-815A-A3669991664F",
              "versionEndExcluding": "0.8.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "crossbeam-utils proporciona at\u00f3micos, primitivas de sincronizaci\u00f3n, hilos de alcance y otras utilidades para la programaci\u00f3n concurrente en Rust. crossbeam-utils versiones anteriores a 0.8.7, asum\u00eda incorrectamente que la alineaci\u00f3n de \"{i,u}64\" era siempre la misma que \"Atomic{I,U}64\". Sin embargo, la alineaci\u00f3n de \"{i,u}64\" en un objetivo de 32 bits puede ser menor que \"Atomic{I,U}64\". Esto puede causar accesos a memoria no alineados y carreras de datos. Los crates que usan m\u00e9todos \"fetch_*\" con \"AtomicCell({i,u}64)\" est\u00e1n afectados por este problema. Los objetivos de 32 bits sin \"Atomic{I,U}64\" y los objetivos de 64 bits no est\u00e1n afectados por este problema. Esto ha sido corregido en crossbeam-utils versi\u00f3n 0.8.7. Actualmente no se presentan medidas de mitigaci\u00f3n conocidas"
    }
  ],
  "id": "CVE-2022-23639",
  "lastModified": "2026-06-17T04:30:32.423",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-23639",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-22T15:44:27.286533Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-02-15T19:15:08.340",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/pull/781"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/pull/781"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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