CVE-2022-36086
Summary
| CVE | CVE-2022-36086 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-09-07 23:15:00 UTC |
| Updated | 2023-07-21 19:23:00 UTC |
| 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>()`. |
Risk And Classification
Problem Types: CWE-1284
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Rust-osdev | Linked-list-allocator | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Out-of-bound writes possible on `Heap` initialization and `Heap::extend` · Advisory · rust-osdev/linked-list-allocator · GitHub | CONFIRM | github.com | |
| Merge pull request from GHSA-xg8p-34w2-j49j · rust-osdev/linked-list-allocator@013b075 · GitHub | MISC | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.