VulnerabilityAnalyzed
CVE-2024-11991
This vulnerability could potentially allow unauthorized read or write access to a Canister's memory.
MEDIUM 6.5EPSS 0.24%
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- dfinity/motoko
- Source
- 6b35d637-e00f-4228-858c-b20ad6e1d07b
References
- https://github.com/dfinity/motoko/pull/4677Issue Tracking, Patch
- https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.