{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-4235","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","state":"PUBLISHED","assignerShortName":"Go","dateReserved":"2022-07-29T18:56:20.415Z","datePublished":"2022-12-27T21:13:42.393Z","dateUpdated":"2025-04-11T16:25:11.371Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","shortName":"Go","dateUpdated":"2023-07-05T23:06:18.281Z"},"title":"Denial of service in gopkg.in/yaml.v2","descriptions":[{"lang":"en","value":"Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector."}],"affected":[{"vendor":"gopkg.in/yaml.v2","product":"gopkg.in/yaml.v2","collectionURL":"https://pkg.go.dev","packageName":"gopkg.in/yaml.v2","versions":[{"version":"0","lessThan":"2.2.3","status":"affected","versionType":"semver"}],"programRoutines":[{"name":"decoder.unmarshal"},{"name":"Decoder.Decode"},{"name":"Unmarshal"},{"name":"UnmarshalStrict"}],"defaultStatus":"unaffected"},{"vendor":"github.com/go-yaml/yaml","product":"github.com/go-yaml/yaml","collectionURL":"https://pkg.go.dev","packageName":"github.com/go-yaml/yaml","programRoutines":[{"name":"decoder.unmarshal"},{"name":"Decoder.Decode"},{"name":"Unmarshal"},{"name":"UnmarshalStrict"}],"defaultStatus":"affected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE 400: Uncontrolled Resource Consumption"}]}],"references":[{"url":"https://github.com/go-yaml/yaml/pull/375"},{"url":"https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241"},{"url":"https://pkg.go.dev/vuln/GO-2021-0061"},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html"}],"credits":[{"lang":"en","value":"@simonferquel"}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T17:23:09.096Z"},"title":"CVE Program Container","references":[{"url":"https://github.com/go-yaml/yaml/pull/375","tags":["x_transferred"]},{"url":"https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241","tags":["x_transferred"]},{"url":"https://pkg.go.dev/vuln/GO-2021-0061","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html","tags":["x_transferred"]}]},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-11T16:24:34.544009Z","id":"CVE-2021-4235","options":[{"Exploitation":"poc"},{"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":"2025-04-11T16:25:11.371Z"}}]}}