{"id":"CVE-2021-33641","state":"PUBLISHED","title":"When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).","description":"When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).","publishedAt":"2023-01-20T00:00:00.000Z","updatedAt":"2025-04-03T20:03:08.779Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"openEuler","products":["n/a byacc"],"affected":[{"vendor":"n/a","product":"byacc","versions":[{"version":"<1.9.20200330 and <2.0.20210808","status":"affected"}]}],"references":["https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T19:48:36.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/33xxx/CVE-2021-33641.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-33641","state":"PUBLISHED","datePublished":"2023-01-20T00:00:00.000Z","dateUpdated":"2025-04-03T20:03:08.779Z","assignerShortName":"openEuler","assignerOrgId":"7e1ac599-2767-43fa-b3ea-f10178cc98f2","dateReserved":"2021-05-28T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free)."}],"affected":[{"vendor":"n/a","product":"byacc","versions":[{"version":"<1.9.20200330 and <2.0.20210808","status":"affected"}]}],"references":[{"url":"https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","type":"CWE","lang":"en","description":"CWE-416 : use after free"}]}],"providerMetadata":{"shortName":"openEuler","orgId":"7e1ac599-2767-43fa-b3ea-f10178cc98f2","dateUpdated":"2023-01-20T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:58:21.542Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-02T15:37:25.468877Z","id":"CVE-2021-33641","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-03T20:03:08.779Z"}}]}}}