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.
History

Mon, 09 Dec 2024 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 09 Dec 2024 14:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Uninitialized memory access in Motoko incremental garbage collector
Weaknesses CWE-908
References
Metrics cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Dfinity

Published: 2024-12-09T14:38:07.288Z

Updated: 2024-12-09T15:07:37.640Z

Reserved: 2024-11-29T10:02:19.279Z

Link: CVE-2024-11991

cve-icon Vulnrichment

Updated: 2024-12-09T15:07:34.136Z

cve-icon NVD

Status : Received

Published: 2024-12-09T15:15:12.203

Modified: 2024-12-09T15:15:12.203

Link: CVE-2024-11991

cve-icon Redhat

No data.