{"id":"EUVD-2022-6977","revision":"d693bfe4485748058ff801235843e6cd","records":[{"revision":"d693bfe4485748058ff801235843e6cd","observedAt":"2026-11-05T23:01:12.934+00:00","statement":{"source":"euvd","id":"EUVD-2022-6977","aliases":["CVE-2022-36086","GHSA-xg8p-34w2-j49j"],"title":"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…","description":"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>()`.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":null}],"references":["https://github.com/rust-osdev/linked-list-allocator/security/advisories/GHSA-xg8p-34w2-j49j","https://github.com/rust-osdev/linked-list-allocator/commit/013b0758643943e8df5b17bbb495460ff47e8bbf"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-6977","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 7, 2022, 10:50:09 PM","dateUpdated":"Apr 22, 2025, 5:23:22 PM"},"relatedAdvisories":[{"id":"openSUSE-SU-2024:12469-1","title":"cargo-audit-advisory-db-20221102-1.1 on GA media","vulnerabilityIds":["CVE-2022-3602","CVE-2022-36086","CVE-2022-3786"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2022-6977","identifiers":["EUVD-2022-6977","CVE-2022-36086","GHSA-xg8p-34w2-j49j"]},"retained":false,"historicalAffected":[]}],"coverage":[]}