{"api_version":"1","generated_at":"2026-04-23T03:05:57+00:00","cve":"CVE-2021-40633","urls":{"html":"https://cve.report/CVE-2021-40633","api":"https://cve.report/api/cve/CVE-2021-40633.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-40633","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-40633"},"summary":{"title":"CVE-2021-40633","description":"A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-06-14 11:15:00","updated_at":"2022-06-23 14:20:00"},"problem_types":["CWE-401"],"metrics":[],"references":[{"url":"https://sourceforge.net/p/giflib/bugs/157/","name":"https://sourceforge.net/p/giflib/bugs/157/","refsource":"MISC","tags":[],"title":"GIFLIB / Bugs / #157 An OutofMemory-Exception or Memory Leak in gif2rgb","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-40633","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40633","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"40633","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"giflib_project","cpe5":"giflib","cpe6":"5.1.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-40633","qid":"510771","title":"Alpine Linux Security Update for giflib"},{"cve":"CVE-2021-40633","qid":"674127","title":"EulerOS Security Update for giflib (EulerOS-SA-2024-1506)"},{"cve":"CVE-2021-40633","qid":"674129","title":"EulerOS Security Update for giflib (EulerOS-SA-2024-1485)"},{"cve":"CVE-2021-40633","qid":"755923","title":"SUSE Enterprise Linux Security Update for giflib (SUSE-SU-2024:0786-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-40633","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":"A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://sourceforge.net/p/giflib/bugs/157/","refsource":"MISC","name":"https://sourceforge.net/p/giflib/bugs/157/"}]}},"nvd":{"publishedDate":"2022-06-14 11:15:00","lastModifiedDate":"2022-06-23 14:20:00","problem_types":["CWE-401"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":5.1},"severity":"MEDIUM","exploitabilityScore":4.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:giflib_project:giflib:5.1.4:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"40633","Ordinal":"216382","Title":"CVE-2021-40633","CVE":"CVE-2021-40633","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"40633","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}]}}}