{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-11991","assignerOrgId":"6b35d637-e00f-4228-858c-b20ad6e1d07b","state":"PUBLISHED","assignerShortName":"Dfinity","dateReserved":"2024-11-29T10:02:19.279Z","datePublished":"2024-12-09T14:38:07.288Z","dateUpdated":"2024-12-09T15:07:37.640Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"moc","product":"Motoko","vendor":"Internet Computer","versions":[{"lessThanOrEqual":"0.13.3","status":"affected","version":"0.9.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p></p><p>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.</p><p></p>"}],"value":"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."}],"impacts":[{"capecId":"CAPEC-131","descriptions":[{"lang":"en","value":"CAPEC-131 Resource Leak Exposure"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-908","description":"CWE-908 Use of Uninitialized Resource","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"6b35d637-e00f-4228-858c-b20ad6e1d07b","shortName":"Dfinity","dateUpdated":"2024-12-09T14:38:07.288Z"},"references":[{"url":"https://github.com/dfinity/motoko/pull/4677"},{"url":"https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3"}],"source":{"discovery":"UNKNOWN"},"title":"Uninitialized memory access in Motoko incremental garbage collector","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Disable incremental garbage collector and enhanced orthogonal persistence. i.e. do <strong>not compile</strong>&nbsp;with&nbsp;<i>—incremental-gc</i> or <i>--enhanced-orthogonal-persistence</i> options.</p>"}],"value":"Disable incremental garbage collector and enhanced orthogonal persistence. i.e. do not compile with —incremental-gc or --enhanced-orthogonal-persistence options."}],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-12-09T15:07:27.354775Z","id":"CVE-2024-11991","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-12-09T15:07:37.640Z"}}]}}