CVE-2024-11991
Last modified
CVE-2024-11991 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dfinity | Motoko | >= 0.9.0, < 0.13.4 |
References
- https://github.com/dfinity/motoko/pull/4677Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
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