CVE-2023-50711

{"id": "CVE-2023-50711", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 2.7, "exploitabilityScore": 2.5}]}, "published": "2024-01-02T20:15:10.250", "references": [{"url": "https://github.com/rust-vmm/vmm-sys-util/commit/30172fca2a8e0a38667d934ee56682247e13f167", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/rust-vmm/vmm-sys-util/security/advisories/GHSA-875g-mfp6-g7f9", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W5XMCLV2P3ANS3XN4NXZTV4PUNTLWUNJ/", "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJI7D273R6G5RUC246KTI2YY3AXZKZMD/", "source": "security-advisories@github.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "vmm-sys-util is a collection of modules that provides helpers and utilities used by multiple rust-vmm components. Starting in version 0.5.0 and prior to version 0.12.0, an issue in the `FamStructWrapper::deserialize` implementation provided by the crate for `vmm_sys_util::fam::FamStructWrapper` can lead to out of bounds memory accesses. The deserialization does not check that the length stored in the header matches the flexible array length. Mismatch in the lengths might allow out of bounds memory access through Rust-safe methods. The issue was corrected in version 0.12.0 by inserting a check that verifies the lengths of compared flexible arrays are equal for any deserialized header and aborting deserialization otherwise. Moreover, the API was changed so that header length can only be modified through Rust-unsafe code. This ensures that users cannot trigger out-of-bounds memory access from Rust-safe code."}, {"lang": "es", "value": "vmm-sys-util es una colecci\u00f3n de m\u00f3dulos que proporciona ayudas y utilidades utilizadas por m\u00faltiples componentes de Rust-VMM. A partir de la versi\u00f3n 0.5.0 y antes de la versi\u00f3n 0.12.0, un problema en la implementaci\u00f3n de `FamStructWrapper::deserialize` proporcionada por la caja para `vmm_sys_util::fam::FamStructWrapper` puede provocar accesos a la memoria fuera de los l\u00edmites. La deserializaci\u00f3n no verifica que la longitud almacenada en el encabezado coincida con la longitud de la matriz flexible. La falta de coincidencia en las longitudes podr\u00eda permitir el acceso a la memoria fuera de los l\u00edmites a trav\u00e9s de m\u00e9todos seguros para Rust. El problema se corrigi\u00f3 en la versi\u00f3n 0.12.0 insertando una verificaci\u00f3n que verifica que las longitudes de las matrices flexibles comparadas sean iguales para cualquier encabezado deserializado y, en caso contrario, abortando la deserializaci\u00f3n. Adem\u00e1s, la API se cambi\u00f3 para que la longitud del encabezado solo se pueda modificar mediante c\u00f3digo no seguro para Rust. Esto garantiza que los usuarios no puedan activar el acceso a la memoria fuera de los l\u00edmites desde el c\u00f3digo seguro para Rust."}], "lastModified": "2024-02-14T03:15:13.793", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rust-vmm:vmm-sys-util:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "8BF935A7-CACE-4181-AF8F-46107DE2240B", "versionEndExcluding": "0.12.0", "versionStartIncluding": "0.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}