Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dfinity | Motoko | >= 0.9.0, < 0.13.4 |
Related Weaknesses (CWE)
References
- https://github.com/dfinity/motoko/pull/4677Issue TrackingPatch
- https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3Vendor Advisory
FAQ
What is CVE-2024-11991?
CVE-2024-11991 is a vulnerability with a CVSS score of 5.6 (MEDIUM). 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 unaut...
How severe is CVE-2024-11991?
CVE-2024-11991 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-11991?
Check the references section above for vendor advisories and patch information. Affected products include: Dfinity Motoko.