{"api_version":"1","generated_at":"2026-07-23T10:04:52+00:00","cve":"CVE-2021-33461","urls":{"html":"https://cve.report/CVE-2021-33461","api":"https://cve.report/api/cve/CVE-2021-33461.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-33461","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-33461"},"summary":{"title":"CVE-2021-33461","description":"An issue was discovered in yasm version 1.3.0. There is a use-after-free in yasm_intnum_destroy() in libyasm/intnum.c.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-07-26 13:15:00","updated_at":"2022-07-28 15:19:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://github.com/yasm/yasm/issues/161","name":"https://github.com/yasm/yasm/issues/161","refsource":"MISC","tags":[],"title":"AddressSanitizer: heap-use-after-free in yasm_intnum_destroy() libyasm/intnum.c:415 · Issue #161 · yasm/yasm · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d","name":"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d","refsource":"MISC","tags":[],"title":"Minimum information for the vulnerability covered by 32 CVEs. · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-33461","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33461","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"33461","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"tortall","cpe5":"yasm","cpe6":"1.3.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-33461","qid":"902568","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for yasm (10379)"},{"cve":"CVE-2021-33461","qid":"902584","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for yasm (10331)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-33461","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An issue was discovered in yasm version 1.3.0. There is a use-after-free in yasm_intnum_destroy() in libyasm/intnum.c."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/yasm/yasm/issues/161","refsource":"MISC","name":"https://github.com/yasm/yasm/issues/161"},{"refsource":"MISC","name":"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d","url":"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d"}]}},"nvd":{"publishedDate":"2022-07-26 13:15:00","lastModifiedDate":"2022-07-28 15:19:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:tortall:yasm:1.3.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"33461","Ordinal":"208863","Title":"CVE-2021-33461","CVE":"CVE-2021-33461","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"33461","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}