Motoko's incremental garbage collector is impacted by an uninitialized memory access bug, caused by incorrect use of write barriers in a few locations. This vulnerability could potentially allow unauthorized read or write access to a Canister's memory. However, exploiting this bug requires the Canister to enable the incremental garbage collector or enhanced orthogonal persistence, which are non-default features in Motoko.
{
"cwe_ids": [
"CWE-908"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/11xxx/CVE-2024-11991.json",
"cna_assigner": "Dfinity"
}