CVE-2022-36086

{"id": "CVE-2022-36086", "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": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/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": 2.5}]}, "published": "2022-09-07T23:15:14.097", "references": [{"url": "https://github.com/rust-osdev/linked-list-allocator/commit/013b0758643943e8df5b17bbb495460ff47e8bbf", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/rust-osdev/linked-list-allocator/security/advisories/GHSA-xg8p-34w2-j49j", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-1284"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were missing a minimum size check for the given heap size argument. This could lead to out-of-bound writes when a heap was initialized with a size smaller than `3 * size_of::<usize>` because of metadata write operations. This vulnerability impacts all the initialization functions on the `Heap` and `LockedHeap` types, including `Heap::new`, `Heap::init`, `Heap::init_from_slice`, and `LockedHeap::new`. It also affects multiple uses of the `Heap::extend` method. Version 0.10.2 contains a patch for the issue. As a workaround, ensure that the heap is only initialized with a size larger than `3 * size_of::<usize>` and that the `Heap::extend` method is only called with sizes larger than `2 * size_of::<usize>()`. Also, ensure that the total heap size is (and stays) a multiple of `2 * size_of::<usize>()`."}, {"lang": "es", "value": "linked_list_allocator es un asignador usable en sistemas no_std. En versiones anteriores a 0.10.2, los m\u00e9todos de inicializaci\u00f3n de la pila carec\u00edan de una comprobaci\u00f3n del tama\u00f1o m\u00ednimo para el argumento del tama\u00f1o de la pila. Esto pod\u00eda conllevar a escrituras fuera de l\u00edmites cuando una pila es inicializada con un tama\u00f1o inferior a \"3 * size_of::(usize)\" debido a las operaciones de escritura de metadatos. Esta vulnerabilidad afecta a todas las funciones de inicializaci\u00f3n de los tipos \"Heap\" y \"LockedHeap\", incluyendo \"Heap::new\", \"Heap::init\", \"Heap::init_from_slice\", y \"LockedHeap::new\". Tambi\u00e9n afecta a m\u00faltiples usos del m\u00e9todo \"Heap::extend\". La versi\u00f3n 0.10.2 contiene un parche para este problema. Como mitigaci\u00f3n, aseg\u00farese de que la pila s\u00f3lo es inicializada con un tama\u00f1o superior a \"3 * size_of::(usize)\" y que el m\u00e9todo \"Heap::extend\" s\u00f3lo es llamado con tama\u00f1os superiores a \"2 * size_of::(usize)()\". Adem\u00e1s, aseg\u00farese de que el tama\u00f1o total de la pila es (y es mantenido) un m\u00faltiplo de \"2 * size_of::(usize)()\""}], "lastModified": "2023-07-21T19:23:18.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rust-osdev:linked-list-allocator:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "D1EB783F-18F3-471C-8006-9949D06163C3", "versionEndExcluding": "0.10.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}