CVE-2020-15254

{"containers": {"cna": {"affected": [{"product": "crossbeam", "vendor": "crossbeam-rs", "versions": [{"status": "affected", "version": "< 0.4.4"}]}], "descriptions": [{"lang": "en", "value": "Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4."}], "metrics": [{"cvssV3_1": {"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"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-119", "description": "{\"CWE-119\":\"Improper Restriction of Operations within the Bounds of a Memory Buffer\"}", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-10-16T17:05:23.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/crossbeam-rs/crossbeam/issues/539"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/crossbeam-rs/crossbeam/pull/533"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/RustSec/advisory-db/pull/425"}], "source": {"advisory": "GHSA-v5m7-53cv-f3hx", "discovery": "UNKNOWN"}, "title": "Undefined Behavior in bounded Crossbeam channel", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-15254", "STATE": "PUBLIC", "TITLE": "Undefined Behavior in bounded Crossbeam channel"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "crossbeam", "version": {"version_data": [{"version_value": "< 0.4.4"}]}}]}, "vendor_name": "crossbeam-rs"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4."}]}, "impact": {"cvss": {"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"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "{\"CWE-119\":\"Improper Restriction of Operations within the Bounds of a Memory Buffer\"}"}]}]}, "references": {"reference_data": [{"name": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx", "refsource": "CONFIRM", "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx"}, {"name": "https://github.com/crossbeam-rs/crossbeam/issues/539", "refsource": "MISC", "url": "https://github.com/crossbeam-rs/crossbeam/issues/539"}, {"name": "https://github.com/crossbeam-rs/crossbeam/pull/533", "refsource": "MISC", "url": "https://github.com/crossbeam-rs/crossbeam/pull/533"}, {"name": "https://github.com/RustSec/advisory-db/pull/425", "refsource": "MISC", "url": "https://github.com/RustSec/advisory-db/pull/425"}]}, "source": {"advisory": "GHSA-v5m7-53cv-f3hx", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:08:23.227Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/crossbeam-rs/crossbeam/issues/539"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/crossbeam-rs/crossbeam/pull/533"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/RustSec/advisory-db/pull/425"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-15254", "datePublished": "2020-10-16T17:05:24.000Z", "dateReserved": "2020-06-25T00:00:00.000Z", "dateUpdated": "2024-08-04T13:08:23.227Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "crossbeam", "vendor": "crossbeam-rs", "versions": [{"status": "affected", "version": "< 0.4.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:*:*:*", "matchCriteriaId": "88240C4C-2AB0-4B8F-8CC8-371F77E60B96", "versionEndExcluding": "0.4.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4."}, {"lang": "es", "value": "Crossbeam es un conjunto de herramientas para programaci\u00f3n concurrente.&#xa0;En crossbeam-channel versiones anteriores a 0.4.4, el canal acotado asume inapropiadamente que \"Vec::from_iter\" ha asignado una capacidad igual a la cantidad de elementos iteradores.&#xa0;\"Vec::from_iter\" en realidad no garantiza eso y puede asignar memoria extra.&#xa0;El destructor del canal \"bounded\" reconstruye \"Vec\" a partir del puntero sin procesar bas\u00e1ndose en los supuestos incorrectos descritos anteriormente.&#xa0;Esto no es correcto y causa una desasignaci\u00f3n con la capacidad incorrecta cuando \"VVec::from_iter\" ha asignado diferentes tama\u00f1os con el n\u00famero de elementos del iterador.&#xa0;Esto ha sido corregido en crossbeam-channel versi\u00f3n 0.4.4"}], "id": "CVE-2020-15254", "lastModified": "2026-06-17T02:56:22.077", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "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": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-16T17:15:12.057", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/RustSec/advisory-db/pull/425"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/issues/539"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/pull/533"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/RustSec/advisory-db/pull/425"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/issues/539"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/pull/533"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "Mozilla: Undefined behavior in bounded channel of crossbeam rust crate", "id": "1963791", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1963791"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-119", "details": ["Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4."], "name": "CVE-2020-15254", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-10-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-15254\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-15254"], "threat_severity": "Important"}

{}